HPE J9285B X240 10G SFP+ SFP+ 7m Direct Attach Copper Cable.

HPE J9285B – 10 Gb/s SFP+ to SFP+ Passive Twinax Direct‑Attach Cable (7 m)

Overview

The HPE J9285B is a fixed‑length passive twinax (copper) direct‑attach cable (DAC) with SFP+ connectors on each end, supporting 10 Gb/s data rates over a 7‑metre span. It’s designed for high‑density interconnects within racks or between adjacent racks where fibre may be over‑spec or where power/latency must be minimal. For a network engineer, this means when you have two SFP+ ports (on switches, servers or stJ9285Borage) within approximately 7 m of each other, you can use the J9285B to link them directly rather than separately buying SFP+ transceivers + patch cables + multimode fibre.

Key Features

• Supports 10 Gb/s throughput via SFP+ on both ends — designed for short‑reach copper twinax application 

• Fixed length of 7 metres (~22.97 ft) which gives flexibility for inter‑rack or mid‑rack connections without extra fibre components. 

• Plug‑and‑play SFP+ form‑factor, no separate modules required — simplifies deployment and inventory for high‑density racks.

• Supported in many HPE/Aruba switch models and compatibility guidance exists — but note: some platforms explicitly do not support the 7 m length version. 

Technical Specifications