The HPE Aruba 2920-48G-POE+ 740W Switch (J9836A) is an enterprise-class Layer 3 managed network switch designed for campus networks, branch offices, and SMB data centers. This switch delivers 48 Gigabit Ethernet ports with full IEEE 802.3at Power over Ethernet Plus support, enabling simultaneous power delivery to IP phones, wireless access points, and IP cameras without separate power supplies. The 740W PoE budget provides up to 30W per port across all 48 access ports. Four dedicated 10 Gigabit SFP+ fiber uplink ports provide high-speed backbone connectivity to core switches or servers. The switch features a non-blocking switching fabric with 176 Gbps total capacity and 112 million packets per second forwarding rate, ensuring wire-speed performance under heavy traffic loads. Advanced Layer 3 routing capabilities include OSPF, RIP, BGP, and static routing protocols with sub-4 microsecond latency. The switch supports modular stacking of up to four units with 40 Gbps per port stacking modules, enabling simplified management and high availability. Additional features include VLAN support (4,094 VLAN IDs), ACL-based security, Quality of Service (QoS) with 8 priority queues, jumbo frame support up to 9220 bytes, and comprehensive management via web GUI, CLI, SNMP, and SSH. The 1U rack-mountable form factor fits standard 19-inch equipment racks. This switch is optimized for Software-Defined Networking (SDN) with OpenFlow support, making it suitable for modern network architectures. The switch includes redundant power supply options and 80 PLUS Silver certified power supplies for energy efficiency.
48-Port PoE+ L3 Managed Switch.
48x GbE PoE+ and 4x 10G SFP+.
176Gbps / 130.9Mpps switching.
740W PoE budget, 30W per port.
1U rack-mount, stackable to 4 units.
OSPF, RIP, BGP, IPv6 routing.
Expedited and overnight shipping options are available at checkout, priced by destination and service.
Purchase orders accepted from qualified institutions.
Refunds within 14 days and replacements within 30 days of delivery with an RMA (25% restocking fee on customer-initiated returns), and every part carries our Standard 30-Day Warranty - see our return policy or contact US IT Hardware.
Featuring
Manufacturer part #
J9836A
Brand
HPE
Condition
Refurbished
DHCP
DHCP server ¦ DHCP relay ¦ BOOTP support
Stacking
Supports up to 4 chassis stacking ¦ Optional 2-port stacking module ¦ 40 Gbps per port stacking bandwidth
OpenFlow support ¦ Software-Defined Networking optimization
Flow Control
IEEE 802.3x flow control ¦ Backpressure support
IPv6 Support
Dual stack (IPv4 and IPv6) ¦ IPv6 ACL/QoS ¦ IPv6 routing (static and RIPng) ¦ RA guard ¦ DHCPv6 protection ¦ MLD snooping
Compatible systems
The HPE Aruba 2920-48G-POE+ is compatible with major enterprise server platforms from Dell PowerEdge, HPE ProLiant, Lenovo ThinkSystem, and Cisco UCS. Supports Windows Server, VMware ESXi, Red Hat Enterprise Linux, and other standard operating systems. Compatible with all standard Gigabit and 10 Gigabit network interfaces and SFP+ fiber transceivers.
Dell PowerEdge
Model: R750, R760, R770
Form factor: 2U Rack
Generation: 15th Gen and newer
Compatible as top-of-rack or edge switch with latest BIOS
HPE ProLiant
Model: DL380, DL390, DL560, DL580
Form factor: 2U Rack
Generation: Gen10 Plus and Gen11
Native HPE product, full integration with iLO management
Lenovo ThinkSystem
Model: SR650, SR670, SR750, SR850
Form factor: 2U Rack
Generation: V2 and V3
Full compatibility with XCC firmware v2.1+
Cisco UCS
Model: C240, C480
Form factor: 1U/2U Rack
Generation: M5 and M6
Compatible as fabric interconnect or standalone switch
Best for
Campus Network Access Layer
Details
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4 x 10 Gigabit SFP+ fiber ports (optional) ¦ Supports multimode and single-mode optical transceivers
Primary switch for enterprise campus networks connecting end-user devices, IP phones, wireless access points, and IP cameras. The 48 PoE+ ports eliminate need for separate power infrastructure while Layer 3 routing enables inter-VLAN communication and network segmentation.
Branch Office Connectivity
Ideal for branch office deployments requiring managed switching with PoE support for remote locations. The 4x 10G SFP+ uplinks provide high-speed WAN connectivity back to headquarters while the stackable architecture supports growth without additional management overhead.
VoIP and Unified Communications
Supports large-scale VoIP deployments with 48 PoE+ ports delivering power and data to IP phones simultaneously. QoS capabilities prioritize voice traffic ensuring call quality while ACLs provide security for sensitive communications.
Wireless Network Infrastructure
Powers and connects multiple wireless access points across large facilities using PoE+ delivery. The 10G uplinks provide sufficient bandwidth for high-density Wi-Fi deployments while VLAN support isolates wireless traffic from wired networks.
IP Surveillance Systems
Supports enterprise-scale IP camera deployments with PoE+ power delivery to 48 cameras simultaneously. The 740W PoE budget accommodates high-power PTZ cameras while jumbo frame support optimizes video streaming performance.
SMB Data Center Edge
Serves as top-of-rack or edge switch in small to medium business data centers. The Layer 3 routing capabilities enable direct server-to-server communication while the 10G uplinks connect to core infrastructure.
Frequently asked questions
What is the total PoE power budget and how many devices can be powered simultaneously?
The switch provides 740W total PoE+ power budget compliant with IEEE 802.3at standard, delivering up to 30W per port across all 48 ports. This enables simultaneous power delivery to 48 devices such as IP phones, wireless access points, or IP cameras without requiring separate power supplies. The actual number of devices depends on individual power consumption, but the 740W budget supports full 48-port deployment of standard PoE+ devices.
What switching capacity and performance does this model deliver?
The switch provides 176Gbps total switching capacity with 130.9 million packets per second forwarding rate in a non-blocking architecture. This ensures wire-speed performance across all ports simultaneously with sub-4 microsecond latency (3.2 microseconds for FIFO 64-byte packets). The hardware-accelerated switching prevents CPU bottlenecks even under sustained maximum traffic loads, making it suitable for high-density enterprise deployments.
What Layer 3 routing protocols are supported for inter-VLAN communication?
The switch supports advanced Layer 3 routing including OSPF, RIP-1, RIP-2, RIPng, BGP, and static IP routing. This enables sophisticated network segmentation through inter-VLAN routing without requiring external routers. The switch maintains 2,048 IPv4 routing entries and 256 IPv6 entries, supporting networks with thousands of subnets. BGP support enables direct ISP connectivity in branch office scenarios.
Can this switch be stacked with other units for scalability?
Yes, the switch supports stacking of up to four units into a single logical device using optional 2-port stacking modules with 40 Gbps per port bandwidth. Stacking enables simplified management, high availability through redundant uplinks, and seamless scalability without additional management overhead. Stacked units can be managed as a single entity through a unified management interface.
What management interfaces and protocols are available?
The switch offers multiple management options including web GUI, command-line interface (CLI), SNMP 1/2c/3, RMON 1/2/3/9, SSH, SSH-2, HTTP, HTTPS, TFTP, and Telnet. An out-of-band management port provides secure management access independent of data traffic. SNMP integration enables centralized monitoring and alerting across enterprise networks, while SSH provides secure remote access.
Is this switch suitable for VoIP and video deployment?
Yes, the switch is ideal for VoIP and video deployments with 48 PoE+ ports for simultaneous device power delivery, sub-4 microsecond latency ensuring call quality, and 8-priority QoS queues for traffic prioritization. The 176Gbps switching capacity handles high-bandwidth video streams without congestion, while VLAN support isolates voice and video traffic for optimal performance and security.
What are the physical dimensions and power requirements?
The switch is a 1U rack-mountable unit measuring 4.39 x 44.25 x 33.6 cm (1.73 x 17.42 x 13.23 inches) fitting standard 19-inch equipment racks. Power consumption is 487W maximum, 46W idle. The switch includes redundant hot-swap power supplies with 80 PLUS Silver certification for energy efficiency. Heat dissipation is 482 BTU/hr (508.51 kJ/hr).
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