AddOn - 25GBase-CU direct attach cable - TAA Compliant - SFP28 to SFP28 - 3 m - twinaxial - passive

Product Overview

AI-generated summary

For a 3 m SFP28-to-SFP28 twinax copper link, this is the kind of “just make it work” cable you buy when you’re connecting two switches/routers that are close together and you don’t want the hassle (or cost) of optics. At £74.82 ex-VAT, it’s fairly priced for a TAA-compliant passive direct-attach solution in a B2B environment—assuming your kit is already expecting SFP28. Where these cables shine is reliability and simplicity: no cleaning, no optics swaps, fewer failure modes than fibre in day-to-day handling.

That said, I’d only buy it if you’ve confirmed compatibility with your specific SFP28 ports and your vendor’s supported reach for passive twinax. Passive cables are great, but they’re less forgiving than active options—if the link is marginal, you’ll see negotiation issues or unstable throughput. Also, don’t treat the category label (“fibre cables”) as relevant here; this is copper twinax, so make sure your procurement/stock setup is aligned. If your endpoints are within the supported distance and you want a dependable short-reach interconnect, this is a sensible purchase. If you’re stretching distances, mixing vendors, or dealing with uncertain port behaviour, I’d consider moving up to an active DAC/short-reach alternative instead of gambling on stability.