StarTech.com HPE J9281B Compatible 1m 10G SFP+ to SFP+ Direct Attach Cable Twinax - 10GbE SFP+ Copper DAC 10 Gbps Low Power Passive Mini GBIC/Transceiver Module DAC Firepower 1040 2930F

Product Overview

AI-generated summary

For £33.08 ex-VAT, this is the kind of “no-nonsense” DAC you buy when you’ve got a short run and you just want the ports to link up without paying optics money. StarTech-compatible 10G SFP+ to SFP+ passive DACs are typically a good value for racks where the switch-to-switch or switch-to-server distance is comfortably within spec. In day-to-day use, it’s mainly about reliability and convenience: minimal fuss, low power, and generally tidy cabling compared to fibre—especially useful in server rooms where everything’s close together.

That said, I’d be slightly cautious about compatibility wording like “HPE J9281B Compatible.” It usually works fine, but if your environment is strict (some HPE setups are pickier about optics/DAC identifiers, and firmware/port profiles can matter), you might hit “links but not fully happy” scenarios or warnings. If you’re building something mission-critical, validate with the exact switch model/firmware and, ideally, test one cable in advance. Who should buy it: teams doing short 10GbE copper links on a budget, with rack distances kept tight. Who should avoid it: anyone needing longer runs, mixing unknown optics brands across fleets without testing, or environments where change control won’t allow trial-and-error.