- Network Admin
How to Segment Your Network for Better Security
24 Nov, 2025



£30.91 inc. VAT
AI-generated summary
For £25.81 ex-VAT, this is the kind of “get it working now” DAC cable that makes sense in a typical UK small-office or data-closet setup—short reach, rack-to-rack, and where you don’t want the faff (or cost) of optics and patching. If you’ve already got compatible SFP+ ports and you just need reliable 10GbE copper between two switches/servers, a direct-attach breakout-style cable like this is usually great value. It’s also simple operationally: no alignment, no dust risk like optics, and it tends to be very consistent at these distances.
That said, it’s only a good buy if your existing gear is genuinely happy with “uncoded compatible” style DACs. In the real world, some vendors and firmware combos can be picky—ports may refuse link, negotiate weirdly, or complain about optics/cable compatibility. If you’re deploying in an environment where uptime is critical and you don’t control the switch firmware, I’d be cautious and sanity-check compatibility first (or budget for a return/RMA risk). If this is for lab testing, internal use, or you’ve got a known-working setup, it’s a sensible spend. If you need a guaranteed, vendor-approved optics experience, spend a bit more on something clearly supported.

Dell
Dell Customer Kit - 25GBase direct attach cable - SFP28 (M) to SFP28 (M) - 2 m - twinaxial - passive

Lenovo
Mellanox Passive DAC Cable for IBM System x - Network cable - QSFP - 1.25 m

Lenovo
IBM - Network cable - RJ-45 (M) to RJ-45 (M) - 25 m - blue

Lenovo
Lenovo - Network cable - 3 m - CAT 6 - green - for ThinkSystem DE4000H Hybrid, SR250 V2, SR630 V2, SR650 V2, ST250 V2, ST50 V2, ST650 V2