- Network Admin
What Does a Network Administrator Actually Do?
20 Jan, 2026



£101.14 inc. VAT
AI-generated summary
If you’ve got 10GbE SFP+ ports and you’re trying to keep things simple (and cheap) versus buying optics, this StarTech active DAC breakout cable can make sense. At £82.66 ex-VAT for a 7m run, it’s realistically aimed at small-to-mid racks where you need a reliable copper connection without faffing around with fibre, patching, and adapters. The “active” part is the clue here: it’s designed to hold up better over longer distances than cheap passive DACs, so it’s a decent bet when you’re not right next to the switch/server.
That said, I’d only buy it if you’re confident your switch/router NICs are happy with “uncoded compatible” DAC behaviour. In the real world, some gear is picky about optics/cabling expectations (vendor firmware, compatibility lists, power negotiation quirks), and a breakout DAC is doubly sensitive because you’re effectively changing how signals get routed. For anything mission-critical, I’d validate against your specific hardware model/compatibility guidance before ordering (or be prepared to swap). If you just need a straightforward point-to-point link and you’re within shorter distances, a more standard DAC is often cheaper and less temperamental.
**Who should buy:** teams running 10GbE over ~7m where they want copper DAC convenience and lower cost than fibre. **Who should avoid:** anyone with unknown SFP+ compatibility, strict data-centre change controls, or setups where you can’t afford link negotiation surprises.

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