Detailed Specifications
HPE Aruba JL487A - 25G SFP28-to-SFP28 Direct Attach Cable
Overview :
The HPE JL487A is a purpose-built 25 Gigabit Ethernet (25G) direct-attach cable (DAC) using an SFP28 interface at both ends, designed for short-reach interconnects such as adjacent rack or within-rack switch links. With a fixed 0.65 m (approximately 2.1 ft) passive twinax copper construction, it supports 25 Gb/s bi-directional data transfer while maintaining low latency and low power consumption. It is compatible with the SFP28 form-factor and meets the required MSA and SFF-8402 electrical specifications. The cable is typically used in DC-class data-centre deployments, for example linking 25G SFP28 ports on switches and servers, and is best suited for environments with high port density and short-distance connectivity requirements. Its passive design removes the need for an external power supply and simplifies deployment between compatible 25G-capable SFP28 ports.
Key Features :
25 Gb/s line rate suitable for 25G Ethernet links
SFP28 to SFP28 twinax copper form factor
Fixed 0.65 m length (2.13 ft) for short-reach interconnects
Passive design for low power and latency
Commercial temperature operation 0 °C to +70 °C
Specifications
| Specification | Details |
|---|
| Brand | HPE |
| Part Number | JL487A |
| Product Type | 25G SFP28-to-SFP28 Direct Attach Cable |
| Data Rate | 25 Gb/s |
| Cable Length | 0.65 m (2.13 ft) |
| Connector | SFP28 on both ends |
| Media Type | Passive twinax copper |
| Wire Gauge | 30 AWG typical |
| Operating Temperature | 0 °C to +70 °C |
| Storage Temperature | -40 °C to +85 °C |
| Power Supply Voltage | 3.3 V nominal |
| Differential Impedance | 100 Ω nominal |
| Minimum Bend Radius | ~26 mm (1.02 in) |
| Weight | ~0.17 lbs (78 g) |
| Compliance Standards | MSA, SFF-8402 |
