JL357A - HPE Aruba 2540 48G PoE+ 4SFP+ Switch Switch

Name: JL357A - HPE Aruba 2540 48G PoE+ 4SFP+ Switch Switch
Brand: HPE
SKU: JL357A
Price: 1725 USD
Availability: InStock

JL357A - HPE Aruba 2540 48G PoE+ 4SFP+ Switch Switch | US IT Hardware

Product overview

The HPE Aruba 2540 48G PoE+ 4SFP+ Switch (JL357A) is an enterprise-class managed Ethernet switch designed for mid-to-large campus networks and data center deployments. It features 48 autosensing 10/100/1000Mbps RJ-45 ports with integrated PoE+ power delivery, enabling simplified deployment of powered network devices such as IP phones, wireless access points, and surveillance cameras. The switch includes four 1G/10G SFP+ ports for flexible uplink connectivity to core infrastructure or server connections. With sub-microsecond latency (1.6µs at 10Gbps for 64-byte packets) and throughput up to 112 Mpps, the 2540 delivers wire-speed performance for demanding enterprise applications. The switch supports comprehensive Layer 2 and Layer 3 features including VLAN management, spanning tree protocols, and quality-of-service (QoS) capabilities. Its modular transceiver design accommodates various optical and copper SFP/SFP+ modules for multi-distance connectivity. The Aruba 2540 is ideal for organizations requiring high-density PoE+ delivery with reliable uplink capacity for campus access networks, branch offices, and virtualized data center environments.

48x 10/100/1000Mbps PoE+ ports deliver power and data simultaneously.
4x 1G/10G SFP+ uplink ports support flexible core connectivity options.
Sub-microsecond latency (1.6µs at 10Gbps) ensures low-delay performance.
112 Mpps throughput provides wire-speed packet forwarding across all ports.
Integrated PoE+ eliminates external power infrastructure for endpoints.
Modular SFP/SFP+ transceiver support enables multi-distance optical connectivity.

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

Part Number (MPN)
Manufacturer part #	JL357A
Brand	HPE
Condition	New
Model Name	Aruba 2540 48G PoE+ 4SFP+ Switch
Product Line	Aruba Networking
Product Type	Managed Ethernet Switch
Cloud Management	HPE Aruba Central (cloud-based) or on-premises management
Lifecycle Status	End of Sale (EOS) - Standard support available
Operating System	Aruba OS (proprietary)
Network Protocols	IPv4, IPv6, OSPF, BGP, RIP, IGMP, LACP, LLDP

Compatible systems

The Aruba 2540 48G PoE+ 4SFP+ is a standalone managed switch compatible with standard Ethernet cabling, IEEE 802.3at/802.3bt PoE+ endpoints, and HPE Aruba transceiver modules. It integrates with HPE Aruba Central for cloud management and supports standard network protocols for enterprise deployments.

HPE Aruba Networking
Model: Aruba 2540 Series
Form factor: 1U Rackmount
Generation: 2540
Standalone managed switch; integrates with HPE Aruba Central cloud management platform and on-premises Aruba Instant On for SMB deployments.

Best for

Campus Network Access
Deploy across multi-building campuses with 48 PoE+ ports powering wireless access points, IP phones, and security cameras while maintaining low-latency connectivity to core switches via SFP+ uplinks.
Data Center Top-of-Rack
Serve as access-layer switch in virtualized data centers, connecting 48 servers or storage devices with optional 10G uplinks to spine infrastructure for east-west traffic optimization.
Branch Office Consolidation
Centralize branch connectivity with integrated PoE+ for endpoints and flexible SFP+ uplinks supporting both 1G and 10G connections to headquarters over diverse WAN links.
IoT and Sensor Networks
Power and connect large-scale IoT deployments with 48 PoE+ ports supporting sensors, controllers, and edge devices while maintaining enterprise-grade switching performance.

Details

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Management Interface	CLI, Web GUI, SNMP v1/v2c/v3, Telnet, SSH

Network & Communication

VLAN Support	IEEE 802.1Q with up to 4,094 VLANs
Port Security	MAC address filtering, port-based access control, DHCP snooping
Spanning Tree	STP, RSTP, MSTP (IEEE 802.1D/802.1W/802.1s)
Latency (1Gbps)	< 3.8 µs (64-byte packets)
Latency (10Gbps)	< 1.6 µs (64-byte packets)
MAC Address Table	8,000 entries (typical for enterprise switches)
Switching Capacity	112 Mpps (million packets per second)
Quality of Service (QoS)	8 priority queues per port, traffic shaping, rate limiting

Power Supply	AC receptacle (specifications vary by regional model)

Form Factor	1U Rackmount

Interface/Ports

PoE+ Ports	48x autosensing PoE+ (up to 30W per port)
Console Port	RJ-45 and Micro-USB
SFP+ Uplink Ports	4x 1G/10G SFP+ (LC connectors)
Gigabit Ethernet Ports	48x RJ-45 10/100/1000Mbps autosensing
Unsupported Transceiver Modules	10G LRM (J9152A/J9152D) not supported in any 2540 model
Supported Transceiver Modules (1G SFP)	Gigabit SFP copper modules (RJ-45) supported
Supported Transceiver Modules (10G SFP+)	J9150A/J9150D (SR), J9151A/J9151D (LR), J9153A/J9153D (ER)

Frequently asked questions

What is the switching capacity and throughput of the Aruba 2540 48G PoE+?

The Aruba 2540 48G PoE+ delivers 112 Mpps (million packets per second) throughput with sub-microsecond latency: 1.6µs at 10Gbps and 3.8µs at 1Gbps for 64-byte packets. This non-blocking architecture ensures wire-speed forwarding across all 48 Gigabit ports plus 4 SFP+ uplinks simultaneously, making it suitable for high-density enterprise deployments without performance bottlenecks.

How much PoE+ power does the JL357A deliver, and what devices can it support?

The Aruba 2540 48G PoE+ features autosensing PoE+ on all 48 ports, delivering up to 30W per port. This supports high-power endpoints including IP phones, wireless access points, PTZ security cameras, and edge computing devices. Total PoE+ budget varies by model configuration; consult HPE documentation for aggregate power specifications and thermal considerations in your deployment environment.

What transceiver modules are compatible with the SFP+ ports on the JL357A?

The Aruba 2540 supports both 1G and 10G SFP+ optical transceivers including J9150A/J9150D, J9151A/J9151D, and J9153A/J9153D modules. Gigabit SFP copper modules (RJ-45) are also supported for shorter distances. 10G LRM (J9152A/J9152D) transceivers are not supported. Verify specific module compatibility with HPE Aruba transceiver compatibility matrices before procurement.

Is the Aruba 2540 suitable for data center deployments?

Yes, the JL357A is well-suited for data center top-of-rack (ToR) access-layer deployments. Its 48 ports accommodate high-density server connections, while 4 SFP+ uplinks provide flexible spine connectivity at 1G or 10G speeds. Sub-microsecond latency and 112 Mpps throughput support demanding east-west traffic patterns in virtualized and containerized environments.

What management and security features does the Aruba 2540 include?

The Aruba 2540 is a managed switch supporting Layer 2 and Layer 3 features including VLAN management, spanning tree protocols (STP/RSTP/MSTP), quality-of-service (QoS), access control lists (ACLs), and port security. It integrates with HPE Aruba Central for cloud-based management and supports standard network protocols for enterprise security and operational control.

What is the end-of-life status of the Aruba 2540 series?

The Aruba 2540 series is marked as EOS (End of Sale) in HPE documentation, indicating it is no longer in active production. However, it remains supported under HPE's standard support lifecycle. Organizations should verify current support dates and consider migration planning to newer Aruba switch series (such as 2930M or 3810M) for new deployments requiring extended support.

HPE Aruba 2540 48G PoE+ 4SFP+ Switch Switch