HPE Aruba 25G SFP28 LC eSR transceiver – 25 GbE, 400 m, multimode (JL485A)

The Aruba JL485A is a fiber optic SFP28 transceiver module designed for 25 GbE network links. It provides a compact, hot-pluggable solution for single-mode or multimode fiber connections (dependent on system optics) and supports up to 25000 Mbit/s data transfer rate. The module's small form factor and silver housing allow straightforward integration into compatible Aruba and HP Enterprise switches and routers, delivering low-latency, high-throughput connectivity for data center and enterprise network environments.

Advantages

The Aruba JL485A balances high data throughput with a compact physical size, enabling dense port configurations in racks and chassis. Its SFP28 interface supports 25 Gigabit Ethernet while maintaining backward compatibility with lower-rate ports where applicable. The transceiver's lightweight silver housing simplifies handling and installation, and its standard form factor supports hot-swap replacement to minimize network downtime.

Suitable for

• 25 Gigabit uplinks between switches and servers
• High-performance server-to-switch connections in data centers
• Aggregation links in campus and enterprise networks
• Environments requiring small-form-factor fiber transceivers for port density

Key specifications

• Interface type: SFP28
• Maximum data transfer rate: 25000 Mbit/s
• Weight: 0.02 kg
• Product colour: Silver
• Form factor: small form-factor pluggable (SFP28)
• Hot-pluggable design for in-service replacement

How to use

Install the Aruba JL485A by inserting the module into a compatible SFP28 port on a switch or router until it seats securely. Connect the appropriate fiber optic cable to the transceiver's LC connector, observing the correct fiber type and polarity for the network design. After physical installation, verify link status and speed in the network device management interface and configure port settings as required for VLANs, trunking, or specific traffic policies.

Recommendations

Use suitable fiber cabling and connectors rated for 25 GbE; check device compatibility and firmware requirements before deployment. Handle the transceiver by the module body, keep dust caps on unused ports, and store spares in anti-static packaging to protect optical components.