StarTech.com Cisco SFP-H10GB-CU0-5M Compatible 0.5m 10G SFP+ to SFP+ Direct Attach Cable Twinax - 10GbE SFP+ Copper DAC 10 Gbps Low Power Passive Mini GBIC/Transceiver Module DAC Firepower ASR9000 ASR1000

Product Overview

AI-generated summary

This is the kind of budget DAC you buy when you know the endpoints are close and you want “works first time” connectivity without paying for optics. For a UK B2B reseller, £25.18 ex‑VAT for a 0.5m 10GbE SFP+ to SFP+ passive twinax is genuinely good value—assuming your switch/router ports already support it happily. In real deployments, these short copper links are ideal for top-of-rack and patch-panel to switch runs where latency and power matter less than simplicity and cost.

Who should buy it: anyone running 10GbE over short distances between compatible SFP+ devices (common in ASR/enterprise gear). Who should *not*: if you’re unsure about optics/DAC compatibility for your exact switch model/firmware, or you need reach, flexibility, or a warranty-style “no surprises” experience—because passive DACs can be picky and short links are unforgiving if you misjudge the path length or cable routing. If your install is neat and you’ve confirmed the SFP+ port behavior, it’s a sensible buy. If not, spend a little more (or test first) rather than gambling on “compatible” claims.