The HPE Aruba 3810M 48G PoE+ (JL074A) is a stackable, managed Layer 3 switch designed for enterprise campus networks and data center edge deployments. It delivers 48 autosensing 10/100/1000BASE-T RJ-45 ports with integrated PoE+ power delivery, enabling simplified deployment of IP phones, wireless access points, and IoT devices. The switch features 320Gbps switching fabric bandwidth with 190.5 Mpps throughput (64-byte packets), sub-3μs latency at 1Gbps, and comprehensive Layer 3 routing capabilities including OSPF, BGP, and VRRP. With dual ARM Cortex-A9 processors, 2GB DDR3 SDRAM, and 1GB flash memory, it supports advanced network management via SNMP, SSH, and CLI. The 1-slot expansion architecture accommodates optional SFP+ or QSFP+ modules for uplink flexibility. Stackable design via optional stacking modules (JL084A) enables management of up to 10 units as a single logical entity, reducing operational complexity in multi-switch deployments.
48x 10/100/1000BASE-T PoE+ ports with 30W per-port delivery.
320Gbps switching fabric with 190.5 Mpps throughput capacity.
Sub-3μs latency at 1Gbps; <1.8μs at 10Gbps for low-latency forwarding.
Dual ARM Cortex-A9 processors with 2GB DDR3 SDRAM and 1GB flash.
Stackable architecture supports up to 10 units via optional JL084A modules.
1-slot expansion for SFP+/QSFP+ uplink modules; 64K MAC address table.
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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 #
JL074A
Brand
HPE
Condition
Refurbished
RAM
2GB DDR3 SDRAM (6GB listed in some sources; 2GB confirmed in enterprise reseller specs)
MPN/SKU
JL074A
USB Port
1x Micro-USB Type-B for local management
Auto-MDIX
Yes; all RJ-45 ports support straight-through or crossover cable detection
Processor
Dual ARM Cortex-A9 @ 1 GHz
Stackable
Yes; FlexChassis Mesh topology supports up to 10 units with optional JL084A stacking modules
IPv6 Ready
IPv6 ready certified
Model Name
Compatible systems
The JL074A integrates seamlessly with HPE Aruba 3810M series switches via optional stacking modules, supports industry-standard SFP+/QSFP+ transceivers for uplink expansion, and requires optional power supply modules (JL087A) for full PoE+ functionality. All 48 ports support standard RJ-45 twisted-pair cabling with auto-MDIX negotiation. Management via standard Ethernet, serial console, and USB interfaces. No operating system installation required; runs Aruba OS firmware.
JL074A includes 1 free expansion slot; supports up to 2 power supply modules (JL087A recommended for PoE+ deployments).
Best for
Campus Networks
Primary access layer switch for enterprise campus buildings, connecting end-user devices, IP phones, and wireless access points with integrated PoE+ power delivery.
Data Center Access Layer
Top-of-rack (ToR) or access-layer switch in virtualized data center environments, providing high-density Gigabit connectivity with low-latency forwarding.
Details
Shipping, warranty & returns
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Buy with confidence
New, certified-refreshed and OEM stock with guaranteed compatibility, backed by warranty on every part.
Centralized switching solution for remote office locations requiring managed Layer 3 routing, PoE+ device support, and stackable redundancy.
IoT and Smart Building Infrastructure
Power and connectivity backbone for large-scale IoT sensor networks, building automation systems, and environmental monitoring devices via PoE+ ports.
Wireless Network Infrastructure
Dedicated access-layer switch for high-density wireless access point deployments with PoE+ power and VLAN segmentation capabilities.
Network Consolidation
Stackable multi-unit deployment reducing physical footprint and management overhead in space-constrained data center or server room environments.
Frequently asked questions
What is the total switching capacity and throughput of the JL074A?
The Aruba 3810M 48G PoE+ delivers 320Gbps switching fabric bandwidth with 190.5 Mpps throughput at 64-byte packet size. This non-blocking architecture ensures wire-speed forwarding across all 48 ports simultaneously, supporting high-density access-layer deployments without performance bottlenecks.
How much PoE+ power can the switch deliver to connected devices?
The JL074A provides up to 30W per port via integrated PoE+ (IEEE 802.3at), enabling direct power delivery to IP phones, wireless access points, and powered IoT sensors without separate power injectors. Total available PoE+ power depends on installed power supply modules (up to 2 slots, 1050W maximum).
What expansion options are available for uplink connectivity?
The 1-slot expansion architecture accommodates optional SFP+ or QSFP+ modules. Supported modules include 4x SFP+ (JL083A) for 10GbE uplinks or 2x QSFP+ (JL079A) for 40GbE connectivity, enabling flexible uplink scaling without replacing the base switch.
Can multiple JL074A switches be stacked together for management?
Yes. Optional stacking modules (JL084A) enable FlexChassis Mesh stacking of up to 10 Aruba 3810M switches, creating a single logical management entity. This simplifies operations, reduces configuration overhead, and provides redundancy in multi-switch deployments.
What Layer 3 routing protocols does the switch support?
The JL074A supports OSPF, BGP, RIP, VRRP, and static IPv4/IPv6 routing. It maintains 10,000 IPv4 and 5,000 IPv6 routing table entries, enabling complex enterprise network designs with dynamic failover and multi-path routing capabilities.
What is the latency performance across different port speeds?
Latency is <2.8μs at 1Gbps (FIFO 64-byte packets), <1.8μs at 10Gbps, and <1.5μs at 40Gbps. This ultra-low latency is critical for time-sensitive applications, high-frequency trading environments, and real-time data center traffic patterns.
What management and security features are included?
Management via SNMP v1/v2c/v3, SSH-2, Telnet, HTTP, and CLI. Security features include RADIUS/TACACS+ authentication, 802.1X port-based access control, ACLs, QoS, and SSL encryption. Supports sFlow v5 for network traffic monitoring and analysis.
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