StarTech.com HPE JD096C Compatible 1.2m 10G SFP+ to SFP+ Direct Attach Cable Twinax - 10GbE SFP+ Copper DAC 10 Gbps Low Power Passive Mini GBIC/Transceiver Module DAC Firepower A5500 5800

Product Overview

AI-generated summary

At ~£24.10 ex-VAT for a 1.2m DAC, this is exactly the sort of “keep the network simple” part that’s hard to argue with—if your link is short enough. For a 10GbE rack-to-rack or patching between a switch and a server/storage card within 1–2m, a passive twinax like this usually just works, draws little power, and saves you the faff (and extra cost) of optics plus transceivers. If you’re building out capacity without wanting to open a whole can of compatibility worms, this is a sensible buy.

The catch is distance and expectations: copper DACs are picky about link length and partner transceivers. If you’re plugging it into an HPE ecosystem (as the naming hints), you’ll likely have a smoother experience, but if you’re mixing vendors or using it across different optics/port types, you could end up with negotiation failures or “it works on one port but not another” annoyance. Also, this is a direct attach cable—great for close connectivity, not a general-purpose “anywhere” solution.

**Buy it** if you have a short, fixed run (around 1.2m) and you just need reliable 10GbE with low overhead. **Avoid it** if you need long runs, have lots of unknown/heterogeneous transceivers, or you want flexibility—optics will cost more, but they’ll be less temperamental.