StarTech.com HPE JD095C Compatible .65m 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

For £24.18 ex-VAT, this looks like a perfectly sensible “make it work” DAC lead if you’re pairing two compatible switches/servers with 10GbE SFP+ ports and you just need short-reach copper without paying big money for optics and transceivers. The twinax/direct-attach approach is usually where you get value: it’s low-latency, it’s simple (no laser optics to worry about), and for rack-to-rack or top-of-rack distances it’s often the cheapest way to upgrade to 10GbE fast. If your HPE gear is picky, the fact it’s sold as “compatible” rather than branded HPE can still be fine, but you should plan to sanity-check link stability after install.

Why you might *not* buy it: if you need anything longer than a very short run, or if your environment is noisy/awkwardly routed (where you’d rather have a bit more tolerance than copper DACs typically offer), this is where optics start to make more sense. Also, if the SFP+ ports are configured to enforce vendor-specific behaviour, a third-party DAC can sometimes be temperamental compared with a known-good OEM part—usually it works, but it’s not worth gambling on mission-critical links without testing.

**Who should buy:** anyone doing short, fixed connections between SFP+ ports on HPE (or HPE-compatible) gear where cost and simplicity matter more than brand-name certainty. **Who shouldn’t:** teams relying on “it’ll probably negotiate fine” in production, or anyone needing reach beyond what a typical 0.65m-class DAC is meant for.