Detailed Specifications
HPE JL489A - 25G SFP28 Direct-Attach Cable 5 m
Overview :
The HPE JL489A is a passive twinax direct-attach copper cable designed to connect two SFP28 ports at 25 Gbps for short-reach interconnects. It is typically used in data centre environments, switching stacks or server-to-switch links where low latency and fixed length are required. The cable length is 5 metres (approximately 16.4 ft) and it supports 25GBASE-CU signalling between SFP28 modules from the same vendor ecosystem. It is suitable for high-density rack configurations, top-of-rack to aggregation switch links, or server blade connections where optical transceivers are not required. The twinax design means minimal power draw and simplified deployment compared with optical fibre in certain use cases. Compatibility is referenced for selected HPE/Aruba CX series switches and servers with SFP28 ports.
Key Features :
Direct-attach copper cable for 25G SFP28 ports
Fixed length of 5 metres (16.4 ft) twinax construction
SFP28 to SFP28 passive cable, no transceivers required
Suitable for high-density, short-reach server and switch interconnects
Low-latency copper link for 25GBASE-CU applications
Specifications :
| Specification | Detail |
|---|
| Brand | HPE |
| Part Number | JL489A |
| Product Type | 25G SFP28 direct-attach copper cable |
| Data Rate | 25 Gbps |
| Cable Length | 5 m (16.4 ft) |
| Connector Type | SFP28 (both ends) |
| Cable Construction | Twinax copper |
| Jacket Material | PVC (OFNR rated) |
| Passive/Active | Passive |
| Recommended Use | Server-to-switch or switch stacking |
| Supported Platforms | HPE/Aruba SFP28 port devices |
| Maximum Reach | 5 m |
| Weight | 0.80 lbs (≈ 0.36 kg) |
| Operating Temperature | 0 °C to 70 °C |
| Storage Temperature | 40 °C to 85 °C |
