The HP 2920 Switch Series consists of five switches: the HP 2920-24G and 2920-24G-PoE+ Switches with 24 10/100/1000 ports, and the HP 2920-48G and 2920-48G-PoE+ and 2920-48G 740W PoE+ Switches with 48 10/100/1000 ports. Each switch has four dual-personality ports for 10/100/1000 or SFP connectivity.

In addition, the 2920 switch series supports up to four optional 10 Gigabit Ethernet (SFP+ and/or 10GBASE-T) ports, as well as a two-port stacking module. These options provide you with flexible and easy-to-deploy uplinks and stacking.

Together with static and RIP routing, robust security and management, enterprise-class features, free lifetime warranty, and free software updates, the HP 2920 Switch Series is a cost-effective, scalable solution for customers who are building high-performance networks. These switches can be deployed at the enterprise edge, in remote branch offices, and in converged networks.
Features
Traffic prioritization (IEEE 802.1p): allows real-time traffic classification into eight priority levels mapped to eight queues
Layer 4 prioritization: enables prioritization based on TCP/UDP port numbers
Class of Service (CoS): sets the IEEE 802.1p priority tag based on IP address, IP Type of Service (ToS), Layer 3 protocol, TCP/UDP port number, source port, and DiffServ
Rate limiting: sets per-port ingress enforced maximums and per-port, per-queue minimums
Large buffers: provide graceful congestion management
Flexible 10 Gb/s Ethernet connectivity: up to four optional 10-Gigabit ports (SFP+ and/or 10GBASE-T)
Two-port stacking module with up to 40 Gb/s per port: optional two-port stacking module allows stacking of up to four switch units into a single virtual device
Auto-MDIX: provides automatic adjustments for straight-through or crossover cables on all 10/100 and 10/100/1000 ports
IPv6: IPv6 host: allows the switches to be managed and deployed at the edge of IPv6 networks. Dual stack (IPv4/IPv6): provides transition mechanism from IPv4 to IPv6; supports connectivity for both protocols. MLD snooping: forwards IPv6 multicast traffic to the appropriate interface; prevents IPv6 multicast traffic from flooding the network.
IEEE 802.3at Power over Ethernet (PoE+): provides up to 30 W per port that allows support of the latest PoE+-capable devices such as IP phones, wireless access points, and security cameras, as well as any IEEE 802.3af-compliant end device; eliminates the cost of additional electrical cabling and circuits that would otherwise be necessary in IP phone and WLAN deployments
Energy-efficient design: High-efficiency power supplies: 80 PLUS Silver Certified power supply increases power savings. Energy-efficient Ethernet (EEE) support: reduces power consumption in accordance with IEEE 802.3az.
HP ProVision ASIC architecture: is designed with the latest HP ProVision ASIC, providing very low latency, increased packet buffering, and adaptive power consumption
Selectable queue configurations: allows for increased performance by selecting the number of queues and associated memory buffering that best meet the requirements of the network applications
OpenFlow: is a key technology that enables software-defined networking by allowing the separation of data (packet forwarding) and control (routing decision) paths
IP multicast snooping and data-driven IGMP: automatically prevent flooding of IP multicast traffic
IEEE 802.1AB Link Layer Discovery Protocol (LLDP): facilitates easy mapping using network management applications with LLDP automated device discovery protocol
LLDP-MED (Media Endpoint Discovery): defines a standard extension of LLDP that stores values for parameters such as QoS and VLAN to automatically configure network devices such as IP phones
PoE and PoE+ allocations: support multiple methods (automatic, IEEE 802.3at dynamic, LLDP-MED fine grain, IEEE 802.3af device class, or user specified) to allocate and manage PoE/PoE+ power for more efficient energy savings

Ports
44 RJ-45 autosensing 10/100/1000 PoE+ ports (IEEE 802.3 Type 10BASE-T, IEEE 802.3u Type 100BASE-TX, IEEE 802.3ab Type 1000BASE-T, IEEE 802.3at PoE+);Duplex: 10BASE-T/100BASE-TX: half or full
1000BASE-T: full only
4 RJ-45 dual-personality 10/100/1000 PoE+ ports (IEEE 802.3 Type 10BASE-T, IEEE 802.3u Type 100BASE-TX, IEEE 802.3ab Type 1000BASE-T, IEEE 802.3at PoE+)
2 module slots
1 stacking module slot
1 dual-personality (RJ-45 or USB micro-B)
1 USB 1.1
1 RJ-45 out-of-band management port
Included
Memory and processor
Tri Core ARM1176 @ 625 MHz; 512 MB SDRAM; packet buffer size: 11.25 MB (6.75 MB dynamic egress + 4.5 MB ingress); 1 GB flash
Latency
100 Mb Latency: < 9.0 µs
1000 Mb Latency: < 3.2 µs
10 Gb/s Latency: < 3.2 µs
Throughput
130.9 million pps
Switching capacity
176 Gb/s
PoE capability
370 W
Management features
HP PCM+
IMC - Intelligent Management Center
command-line interface
Web browser
configuration menu
out-of-band management (RJ-45 Ethernet)
SNMP Manager
Telnet
RMON1
FTP
in-line and out-of-band
out-of-band management (serial RS-232C or Micro USB)
Power and operating requirements
Power consumption
487 W (maximum)
Input voltage
100 - 240 VAC
Operating temperature range
32 to 131?F
(0 to 55?C )
Operating humidity range
15 to 95% (noncondensing)
Power supply name
1 x J9738A
Heat dissipation
399 BTU/hr (420.95 kJ/hr)
Dimensions and weight
Dimensions (W x D x H)
17.42 x 13.23 x 1.73 in (44.25 x 33.6 x 4.39 cm)
Weight
12.57 lb (5.7 kg)
What's included
Differentiator
48-port basic L3 10/100/1000 PoE+ switch with 2 slots for optional 10G modules, 1 slot for optional stacking module and a modular power supply
What's in the box
(1) HP 2920-48G-PoE+ Switch
Warranty
Lifetime, advance replacement, next business day