Detailed Specifications
HPE JL438A 10 Gigabit SFP+ Transceiver Module 10GBASE-LRM MMF
Overview
The HPE JL438A is a 10-Gigabit small-form-factor pluggable plus (SFP+) optical transceiver module engineered for use over multimode fibre (MMF) using the 10GBASE-LRM specification. It uses a wavelength of 1310 nm and is rated for up to approximately 200-220 metres on OM3/OM4 multimode fibre. You'd deploy this in scenarios where you need to upgrade fibre links in a campus or data-centre environment to 10 Gb but the existing fibre is multimode and you don't want to re-cable with single-mode. It fits into standard SFP+ cages in HPE/Aruba switches, providing a cost-effective way to get 10 Gb links over MMF infrastructure rather than needing single-mode optics.
Key Features
10 Gbps data rate over the SFP+ form-factor supports high-bandwidth uplinks and optical fibre trunking.
Operates at 1310 nm over multimode fibre under the 10GBASE-LRM standard, rated up to ~220 metres (depending on fibre type and conditions).
Duplex LC connector, hot-swappable SFP+ module×fits HPE/Aruba platforms with SFP+ ports and allows fibre-link upgrades without replacing hosts.
Designed as a long-reach multimode option for 10G, enabling reuse of existing MMF infrastructure while avoiding the cost of SMF optics.
Technical Specifications
| Specification | Detail |
|---|
| Brand | HPE (Hewlett Packard Enterprise) |
| Part Number | JL438A |
| Product Type | Optical Transceiver Module - 10 Gb SFP+ (10GBASE-LRM) |
| Key Specification | Data Rate: 10 Gbps |
| Key Specification | Wavelength: ~1310 nm |
| Key Specification | Maximum Reach: ~200-220 m over multimode fibre (OM3/OM4) |
| Management | Hot-swappable SFP+ module (supports DOM/monitoring in capable hosts) |
| Power Requirements | Typical SFP+ supply (~+3.3 V, low power draw) |
| Dimensions & Weight | Standard SFP+ form-factor (~13.4 mm × 56.5 mm × ~8-9 mm) |
| Warranty | Limited lifetime or standard HPE optics warranty (verify region) |
