Network Switches for Multiple Devices

D-Link® WebSmart Managed gigabit ethernet switch features gigabit Ethernet technology and 10/100/1000base-T network technology respectively. Switch has storm control which protects against broadcast, multicast and unknown unicast storm..28-ports 10/100/1000Base-T gigabit Ethernet, fast Ethernet.Address database size: 16000 MAC addresses.Managed switch.Total Number of network ports: 24, Number of network (RJ-45) ports: 24.Media type supported: Twisted-pair, Ethernet technology: Gigabit Ethernet, fast Ethernet, Network technology: 10/100/1000Base-T.Number of total expansion slots: 4, Number of SFP slots: 4.Standard memory: 128MB, memory technology: DDR2 SDRAM, flash memory: 16MB.Performance: Switching capacity: 56 Gbps, forwarding performance: 41.7 Mpps.Jumbo frame support: 10000, MTBF: 236739 hrs.Remote management protocol: SNMP 1, SNMP 2, Telnet, SNMP 3, SNMP 2c, HTTP, CLI.Interfaces: 24 x 1000Base-T - RJ-45, 4 x SFP (mini-GBIC).Eco-friendly operation with D-Link green technology, web based management and auto discovery utility, true plug and play.Fanless design for quiet operation, fiber media support via 4 dedicated SFPs, DSCP and QoS with auto voice VLANs for VoIP, advanced security features, IPv4/IPv6 dual-stack.Displays MAC address, IP address, DHCP hostname, insight plus will report client security, time when device was last seen transmitting data on the network.Input voltage: 110 VAC, 220 VAC, Power source: Power supply.Operating temperature: 32 - 122 deg F, Operating humidity: 0 - 95%.Certifications and standards: IEEE 802.3, IEEE 802.3u, IEEE 802.1D, IEEE 802.1Q, IEEE 802.3ab, IEEE 802.1p, IEEE 802.3af, IEEE 802.3x, IEEE 802.3ad (LACP), IEEE 802.1w, IEEE 802.1x.Warranty: Lifetime limited.D-Link® WebSmart Managed gigabit ethernet switch with a standard memory of 128 MB requires an input voltage of 110/220 VAC and has 24 network ports.

Cisco Catalyst 9300 Series switches are Cisco's lead stackable enterprise access switching platform and as part of the Catalyst 9000 family, are build to transform your network to handle a hybrid world where the workplace is anywhere, endpoints could be anything, and applications are hosted all over the place. The Catalyst 9300 Series, including the new Catalyst 9300X models, continues to shape the future with continued innovation that helps you reimagine connections, reinforce security and redefine the experience for your hybrid workforce big and small..Stackable managed Gigabit Ethernet switch.Equipped with 24 x Gigabit Ethernet ports with full PoE+ support and 4 x Gigabit fixed uplinks.Forwarding rate: 41.66Mbps, switching capacity: 56Gbps.Dimensions: 1.73"H x 17.5"W x17.7"D.505W available PoE power with single primary power supply.Based on the Cisco UADP 2.0 Application-Specific Integrated Circuit (ASIC) with programmable pipeline and microengine capabilities, along with template-based, configurable allocation of Layer 2 and Layer 3 forwarding, Access Control Lists (ACLs), and Quality of Service (QoS) entries.Features x86 CPU complex with 8GB memory, and 16GB of flash and external USB 3.0 SSD pluggable storage slot (delivering up to 240GB of storage with an optional SSD drive) to host containers.USB 2.0 slot to load system images and set configurations.Intelligent Power Management with Cisco StackPower technology, providing power stacking among members for power redundancy.IPv6 support in hardware, providing wire-rate forwarding for IPv6 networks.Dual-stack support for IPv4/IPv6 and dynamic hardware forwarding table allocations, for ease of IPv4-to-IPv6 migration.Cisco IOS XE, a modern operating system for the enterprise with support for model-driven programmability including NETCONF, RESTCONF, YANG, on-box Python scripting, streaming telemetry, container-based application hosting, and patching for critical bug fixes.Plug-and-Play (PnP) enabled: a simple, secure, unified, and integrated offering to ease new branch or campus device rollouts, or updates to an existing network.Advanced security: Encrypted Traffic Analytics (ETA), support for AES-256 with the powerful MACsec 256-bit encryption algorithm, hardware anchored Secure Boot and Secure Unique Device Identification (SUDI) support for Plug and Play, to verify the identity of the hardware and software.Perpetual licensing package includes the Network Essentials licensing option that is tied to the hardware.Lifetime manufacturer limited warranty

748305aacfb94d13fcf70f731a800a0a.Features 24 networking ports to establish large network.Cascade to other network devices through the uplink port to expand your local area network.Supports cost-efficient twisted pair cables for high-speed data transfer up to 100 meters.Gigabit Ethernet port for ultra-fast network speeds.Layer 2 switch provides a complete lineup of features including IGMP snooping, port mirroring, and spanning tree.Management capability provides control over setup and configuration of your network.Built-in power supply to ensure all components are being supplied with accurate voltage.Rack mounting enables you to organize wires & secure cables for professional installation

Cisco Catalyst 9300 Series switches are Cisco's lead stackable enterprise access switching platform and as part of the Catalyst 9000 family, are build to transform your network to handle a hybrid world where the workplace is anywhere, endpoints could be anything, and applications are hosted all over the place. The Catalyst 9300 Series, including the new Catalyst 9300X models, continues to shape the future with continued innovation that helps you reimagine connections, reinforce security and redefine the experience for your hybrid workforce big and small..Managed 24-port Gigabit Ethernet switch offers simplicity without compromise: secure, always on, and IT simplified.Equipped with 24 x 10/100/1000 PoE+ ports and four 10 Gigabit/1 Gigabit SFP+.Switching capacity: up to 128Gbps or up to 448Gbps with stacking.Made in rack-mountable form factor.Facilitates remote management with SNMPv1/v2c/v3 management station that discovers and monitors the switch.Quality of service (QoS) and flow control for improved network efficiency.Dimensions: 1.73"H x 17.52"W x 19.21"D

The HP® Aruba 2930F 24-port PoE+ fixed port managed Gigabit Ethernet switch provides high-performance and resiliency for a digital workplace campus network. A powerful Aruba ProVision ASIC delivers performance and value, supporting the latest SDN applications with future proof programmability, as well as it supports 10GbE uplinks, PoE+, robust QoS and RIP routing. The switch provides better application experience with low latency and virtualization. The switch provides you an unmatched quality of service with trusted security that meets corporate policies and compliance requirements. The switch supports Aruba ClearPass policy manager for unified and consistent policy between wired and wireless users with simplified implementation and management for guest login, network access and other network policies..Fixed port managed gigabit Ethernet switch provides a reliable infrastructure for your business network.Dimensions: 4.39 cmH x 44.25 cmW x 30.42 cmD.Compatible with PC.Comes in black color.Memory: 1GB DDR3 SDRAM, buffer memory: 12.38MB 4.5MB Ingress/7.785 Egress, 4GB eMMC, processor: Dual Core ARM Coretex A9 at 1016 MHz.Interfaces/ports: 24 x RJ-45 autosensing 10/100/1000 PoE+ ports, 4 x SFP.Media type supported: Twisted pair, optic fiber, network technology: 10/100/1000Base-T, 1000Base-X.Layer supported: 3.Ethernet technology: Gigabit Ethernet.MAC address table: 32K entries.Throughput: Up to 41.7 Mpps, routing/switching capacity: 56 Gbps.Latency: 1000 Mbps latency: < 3.8 us.Management: Aruba AirWave network management, IMC - Intelligent Management Center, command-line interface, web browser, configuration menu.Power: 120 - 230 VAC 50/60 Hz redundant power supply, PoE capability: 370 W PoE+.Form factor: 1U rack-mountable, Desktop.Includes Aruba 2930F 24G PoE+ 4SFP switch, 1 x power cord, 1 x screw kit, 4 x mounting ears, 4 x bumper feet, 1 x cable tie.Meets FCC part 15 Class A, VCCI Class A, EN 55022 Class A, CISPR 22 Class A, EN 55024, EN 61000-3-2 2000, 61000-3-3, ICES-003 Class A, RoHS standards.Weight: 3.9 kg.Comes with limited lifetime warranty

Cisco Catalyst 9300 switches are stackable enterprise switching platform built for security, IoT, mobility, and cloud. They are the next generation of the industry's most widely deployed switching platform. Cisco Catalyst 9300 switches form the foundational building block for Software-Defined Access (SD-Access). They are the industry's highest-density stacking bandwidth solution with the most flexible uplink architecture. TCisco Catalyst 9300 is the first optimized platform for high-density Wi-Fi 6 and 802.11ac Wave2. It sets new maximums for network scale. These switches are also ready for the future, with an x86 CPU architecture and more memory, enabling them to host containers and run third-party applications and scripts natively within the switch..Stackable enterprise switching platform built for security, IoT, mobility, and cloud.Features 48-port 1G copper with fixed 4x10G SFP+ uplinks, PoE+ Network Advantage.Uses Encrypted Traffic Analytics (ETA), AES-256 MACsec encryption, IPSec encryption, Trust Anchor Technologies, and Umbrella DNS Integration.Dimensions: 1.73"H x 17.5"W x 17.7"D.Maximum power consumption: 715W; switching capacity: 176Gbps.Certifications and standards: Meets or exceeds UL 60950-1, CAN/CSA-C222.2 No. 60950-1, EN 60950-1, IEC 60950-1, AS/NZS 60950.1, IEEE 802.3 standards.Accelerate changes with programmability, supporting open standards and APIs.Detect and stop threats, even with encrypted traffic.Simplified automation and assurance: goal-based policies are created once centrally, applied network-wide.Features x86 CPU complex with 8GB memory, and 16GB of flash and external USB 3.0 SSD pluggable storage slot (delivering up to 240GB of storage with an optional SSD drive) to host containers.High wireless scale for Wi-Fi 6 and 802.11ac Wave 2 access points supported on a single switch with select models.Lifetime manufacturer limited warranty

The D-Link 16-Port Gigabit Switch (DGS-1016D) delivers power, performance, and reliability in one cost-effective, space-saving design. Increase the speed of your network server and backbone connections, or make Gigabit to the desktop a reality. Users in the office, workgroup, or creative production environment can now transfer large bandwidth-intensive files faster. Transfer graphics, CGI, CAD, or multimedia files across the network without hesitation. The versatile and compact 1RU height design of the DGS-1016D enables the device to be rack mounted in a standard 19-inch rack while conserving valuable rack space..16-Port Gigabit Switch.16 Ports - Gigabit Ethernet.Media Type Supported Twisted Pair.Network Technology 10/100/1000Base-T.Dimensions: H 1.75" , W 11", D 7.1". Weight: 2.97lb.Limited lifetime Warranty

Cisco Catalyst 9200 Series switches extend the power of intent-based networking and Catalyst 9000 hardware and software innovation to a broader set of deployments. With its family pedigree, Catalyst 9200 Series switches offer simplicity without compromise – it is secure, always on, and IT simplified. As foundational building blocks for the Cisco Digital Network Architecture, Catalyst 9200 Series switches help customers simplify complexity, optimize IT, and reduce operational costs by leveraging intelligence, automation and human expertise that no other vendor can deliver regardless of where you are in the intent-based networking journey. Catalyst 9200 Series switches provide security features that protect the integrity of the hardware as well as the software and all data that flows through the switch. It provides resiliency that keeps your business up and running seamlessly. Combine that with open APIs of Cisco IOS XE and programmability of the UADP ASIC technology, Catalyst 9200 Series switches give you what you need now with investment protection on future innovations..Managed 48-port Gigabit Ethernet switch offers simplicity without compromise: secure, always on, and IT simplified.Switching capacity: up to 176Gbps or up to 256Gbps with stacking.Made in 1U rack mountable form factor.Superior QoS includes granular wireless bandwidth management and fair sharing, 802.1p class of service (CoS) and differentiated services code point (DSCP) field classification, shaped round-robin (SRR) scheduling, committed information rate (CIR), and eight egress queues per port.Enhanced security with AES-128 MACsec encryption, policy-based segmentation, and trustworthy systems.Layer 3 capabilities, including OSPF, EIGRP, ISIS, RIP, and routed access.Advanced network monitoring using full Flexible NetFlow.Simplified operations and deployment with policy-based automation from edge to cloud managed with Cisco Identity Services Engine (ISE).Network assurance and improved resolution time through Cisco DNA Center.Plug-and-Play (PnP) enabled: a simple, secure, unified, and integrated offering to ease new branch or campus device rollouts or updates to an existing network.Cisco IOS XE: a Common licensing based operating system for the enterprise Cisco Catalyst 9000 product family with support for model-driven programmability and streaming telemetry.ASIC with programmable pipeline and micro-engine capabilities, along with template-based, configurable allocation of Layer 2 and Layer 3 forwarding, Access Control Lists (ACLs), and Quality of Service (QoS) entries.Perpetual licensing package includes the Network Essentials licensing option that is tied to the hardware.Lifetime manufacturer limited warranty

Netgear 16 PoE+ ports with 190W power budget. Unmanaged 300-Series PoE switches are easy, reliable, and affordable network connectivity for home and small offices. Providing power and data from a single Ethernet cable..Unmanaged PoE switch is easy, reliable, and affordable network connectivity for home and small offices.Dimensions: 1.7"H x 13"W x 8.1"D.Comes in black durable and rugged metal case.24 Gigabit ports.Simple set up with no software to install or configuration needed.Non-blocking switching architecture for maximum throughput at wire speed.Fanless design minimizes noise pollution, making the switch ideal for noise-sensitive environments.Designed to optimize power usage, lowering its cost to operate

The SISPM1040-362-LRT is a full managed PoE+ switch suitable for connecting and powering devices in hardened environments. The switch can supply up to 30 Watts per port on all four PoE ports simultaneously. The switch also includes the embedded Device Management System (DMS) software that provides the advanced tools necessary for total management of all IP addressable devices. The unique DMS provides security integrators with lower overall cost, less downtime and easier management of the entire PoE+ network. Transition Networks' hardened switches are certified to operate reliably in harsh environments such as those found on factory floors, outdoor enclosures or other challenging environments..Store-and-Forward Architecture with 16 Gbps Switching Bandwidth.Supports Jumbo frames up to 9.6K Bytes.Ring Protections: Industry standard G.8032 Ethernet Ring Protection Switching (ERPS), Support G.8031 Ethernet Linear Protection Switching (EPS), Rapid Ring with recovery time less than 20ms.With 10GBase-DWDM technology, get up to 10Gbps data transfer rate using dense wavelength-division multiplexing

SS2GR4000 Series is a L2 Gigabits intelligent switch designed for carrier and MAN networks. It supports comprehensive QoS, enhanced VLAN functions (VLAN VPN, Voice VLAN, QinQ, N:1 VLAN Translation), Ethernet Ring Protection Protocol (G.8032), classified bandwidth control, intelligent security control, OAM(Operations, Administration and Maintenance), manageability functions and Triple-Play services which fulfill the network requirements demanded by carrier network, MAN access. SS2GR4000 Series switch offers green features like IEEE 802.3az (Energy Efficient Ethernet), Fan-less design, which can dramatically lower power consumption, achieve green energy and save the cost for the carrier and MAN users..Features 24 networking ports to meet the requirements of the most demanding workgroups.Cascade to other network devices through the uplink port to expand your local area network.Stack port provides an easy and hassle-free way to extend your office network

Cisco Catalyst 9200 Series switches extend the power of intent-based networking and Catalyst 9000 hardware and software innovation to a broader set of deployments. With its family pedigree, Catalyst 9200 Series switches offer simplicity without compromise – it is secure, always on, and IT simplified. As foundational building blocks for the Cisco Digital Network Architecture, Catalyst 9200 Series switches help customers simplify complexity, optimize IT, and reduce operational costs by leveraging intelligence, automation and human expertise that no other vendor can deliver regardless of where you are in the intent-based networking journey. Catalyst 9200 Series switches provide security features that protect the integrity of the hardware as well as the software and all data that flows through the switch. It provides resiliency that keeps your business up and running seamlessly. Combine that with open APIs of Cisco IOS XE and programmability of the UADP ASIC technology, Catalyst 9200 Series switches give you what you need now with investment protection on future innovations..Managed 24-port Gigabit Ethernet switch offers simplicity without compromise: secure, always on, and IT simplified.Equipped with 24 x Gigabit Ethernet ports with full PoE+ support and 4 x 1/10G fixed uplinks.Switching capacity: up to 128Gbps or up to 208Gbps with stacking.Made in 1U rack mountable form factor.Superior QoS includes granular wireless bandwidth management and fair sharing, 802.1p class of service (CoS) and differentiated services code point (DSCP) field classification, shaped round-robin (SRR) scheduling, committed information rate (CIR), and eight egress queues per port.Enhanced security with AES-128 MACsec encryption, policy-based segmentation, and trustworthy systems.Layer 3 capabilities, including OSPF, EIGRP, ISIS, RIP, and routed access.Advanced network monitoring using full Flexible NetFlow.Simplified operations and deployment with policy-based automation from edge to cloud managed with Cisco Identity Services Engine (ISE).Network assurance and improved resolution time through Cisco DNA Center.Plug-and-Play (PnP) enabled: a simple, secure, unified, and integrated offering to ease new branch or campus device rollouts or updates to an existing network.Cisco IOS XE: a Common licensing based operating system for the enterprise Cisco Catalyst 9000 product family with support for model-driven programmability and streaming telemetry.ASIC with programmable pipeline and micro-engine capabilities, along with template-based, configurable allocation of Layer 2 and Layer 3 forwarding, Access Control Lists (ACLs), and Quality of Service (QoS) entries.Perpetual licensing package includes the Network Essentials licensing option that is tied to the hardware.Lifetime manufacturer limited warranty

The Cisco Catalyst 9300 Series switches are Cisco's lead stackable enterprise switching platform built for security, IoT, mobility, and cloud. They are the next generation of the industry's most widely deployed switching platform. Catalyst 9300 Series switches form the foundational building block for Software-Defined Access (SD-Access), Cisco's lead enterprise architecture. At up to 480 Gbps, they are the industry's highest-density stacking bandwidth solution with the most flexible uplink architecture. The Catalyst 9300 Series is the first optimized platform for high-density Wi-Fi 6 and 802.11ac Wave2. It sets new maximums for network scale. These switches are also ready for the future, with an x86 CPU architecture and more memory, enabling them to host containers and run third-party applications and scripts natively within the switch. The Catalyst 9300 Series is designed for Cisco StackWise technology, providing flexible deployment with support for nonstop forwarding with Stateful Switchover (NSF/SSO), for the most resilient architecture in a stackable (sub-50-ms) solution. The highly resilient and efficient power architecture features Cisco StackPower, which delivers high-density Power over Ethernet Plus (PoE+), 60W Cisco Universal Power over Ethernet (Cisco UPOE) and 90W Cisco UPOE+ ports..Rack mountable switch is stackable enterprise switching platform built for security, IoT, mobility, and cloud.Contains 48 fixed uplink PoE+ and four 10Gb uplink ports.Cisco IOS XE, a modern operating system for the enterprise with support for model-driven programmability including NETCONF, RESTCONF, YANG, on-box Python scripting, streaming telemetry.Dimensions: 1.73"H x 17.5"W x 16.1"D.Meets or exceeds IEC 60950-1, UL 60950-1, CAN/CSA C22.2, No. 60950-1, EN 60950-1, AS/NZS 60950.1, Class I Equipment standards.High wireless scale for Wi-Fi 6 and 802.11ac Wave 2 access points supported on a single switch with select models.Cisco UADP 2.0 Application-Specific Integrated Circuit (ASIC) with programmable pipeline and microengine capabilities, along with template-based, configurable allocation of Layer 2 and Layer 3 forwarding, Access Control Lists (ACLs), and Quality of Service (QoS) entries.USB 2.0 slot to load system images and set configurations.Up to 480Gbps of local stackable switching bandwidth.Deeper buffer and higher-scale model options for rich multimedia content delivery applications.Leading PoE capabilities with up to 384 ports of PoE per stack, PoE+, and high density IEEE 802.3bt - 60W UPOE, and 90W Cisco UPOE+.Intelligent Power Management with Cisco StackPower technology, providing power stacking among members for power redundancy.Line-rate, hardware-based Flexible NetFlow (FNF), delivering flow collection of up to 64000 flows.Dual-stack support for IPv4/IPv6 and dynamic hardware forwarding table allocations, for ease of IPv4-to-IPv6 migration.Precision Time Protocol (PTP; IEEE 1588v2) provides accurate clock synchronization with sub-microsecond accuracy making it suitable for distribution and synchronization of time and frequency over network.Plug and Play (PnP) enabled: a simple, secure, unified, and integrated offering to ease new branch or campus device rollouts or updates to an existing network.Lifetime manufacturer limited warranty

The DGS-1100 Series is a range of switches designed to meet the requirements of small, medium, and enterprise businesses. Support for multiple PoE standards make the DGS-1100 Series ideal for IP surveillance deployments. Advanced management features, a range of diagnostic and troubleshooting tools, and energy efficient technologies provide a flexible solution to meet your networking requirements..Number of Ethernet Ports 16, Network Management Type Managed.Network Technology: 10/100/1000Base-T.Ethernet Technology: Gigabit Ethernet.Switch Form Factor: Rack-mountable, Desktop.Wireless Connectivity: Not Applicable.Power Source: Power Supply.Media Type Supported: Twisted Pair.Limited Lifetime Warranty

The Cisco Catalyst 9300 Series switches are Cisco's lead stackable enterprise switching platform built for security, IoT, mobility, and cloud. They are the next generation of the industry's most widely deployed switching platform. Catalyst 9300 Series switches form the foundational building block for Software-Defined Access (SD-Access), Cisco's lead enterprise architecture. At up to 480 Gbps, they are the industry's highest-density stacking bandwidth solution with the most flexible uplink architecture. The Catalyst 9300 Series is the first optimized platform for high-density Wi-Fi 6 and 802.11ac Wave2. It sets new maximums for network scale. These switches are also ready for the future, with an x86 CPU architecture and more memory, enabling them to host containers and run third-party applications and scripts natively within the switch. The Catalyst 9300 Series is designed for Cisco StackWise technology, providing flexible deployment with support for nonstop forwarding with Stateful Switchover (NSF/SSO), for the most resilient architecture in a stackable (sub-50-ms) solution. The highly resilient and efficient power architecture features Cisco StackPower, which delivers high-density Power over Ethernet Plus (PoE+), 60W Cisco Universal Power over Ethernet (Cisco UPOE) and 90W Cisco UPOE+ ports..Rack mountable switch is stackable enterprise switching platform built for security, IoT, mobility, and cloud.Contains 48 fixed uplink PoE+ and four 1Gb uplink ports.Cisco IOS XE, a modern operating system for the enterprise with support for model-driven programmability including NETCONF, RESTCONF, YANG, on-box Python scripting, streaming telemetry.Dimensions: 1.73"H x 17.5"W x 16.1"D.Meets or exceeds IEC 60950-1, UL 60950-1, CAN/CSA C22.2, No. 60950-1, EN 60950-1, AS/NZS 60950.1, Class I Equipment standards.High wireless scale for Wi-Fi 6 and 802.11ac Wave 2 access points supported on a single switch with select models.Cisco UADP 2.0 Application-Specific Integrated Circuit (ASIC) with programmable pipeline and microengine capabilities, along with template-based, configurable allocation of Layer 2 and Layer 3 forwarding, Access Control Lists (ACLs), and Quality of Service (QoS) entries.USB 2.0 slot to load system images and set configurations.Up to 424Gbps of local stackable switching bandwidth.Deeper buffer and higher-scale model options for rich multimedia content delivery applications.Leading PoE capabilities with up to 384 ports of PoE per stack, PoE+, and high density IEEE 802.3bt - 60W UPOE, and 90W Cisco UPOE+.Intelligent Power Management with Cisco StackPower technology, providing power stacking among members for power redundancy.Line-rate, hardware-based Flexible NetFlow (FNF), delivering flow collection of up to 64000 flows.Dual-stack support for IPv4/IPv6 and dynamic hardware forwarding table allocations, for ease of IPv4-to-IPv6 migration.Precision Time Protocol (PTP; IEEE 1588v2) provides accurate clock synchronization with sub-microsecond accuracy making it suitable for distribution and synchronization of time and frequency over network.Plug and Play (PnP) enabled: a simple, secure, unified, and integrated offering to ease new branch or campus device rollouts or updates to an existing network.Lifetime manufacturer limited warranty

SS2GR4000 Series is a L2 Gigabits intelligent switch designed for carrier and MAN networks. It supports comprehensive QoS, enhanced VLAN functions (VLAN VPN, Voice VLAN, QinQ, N:1 VLAN Translation), Ethernet Ring Protection Protocol (G.8032), classified bandwidth control, intelligent security control, OAM(Operations, Administration and Maintenance), manageability functions and Triple-Play services which fulfill the network requirements demanded by carrier network, MAN access. SS2GR4000 Series switch offers green features like IEEE 802.3az (Energy Efficient Ethernet), Fan-less design, which can dramatically lower power consumption, achieve green energy and save the cost for the carrier and MAN users..Features 48 networking ports to meet the requirements of the most demanding workgroups.Cascade to other network devices through the uplink port to expand your local area network.Stack port provides an easy and hassle-free way to extend your office network