- Network Admin
Understanding VLANs: Why Your Business Network Needs Them
11 Mar, 2026



£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.

Lenovo
Lenovo Passive Direct Attach Cable - 10GBase direct attach cable - SFP+ (M) to SFP+ (M) - 5 m - passive - for ThinkAgile HX2320 Appliance, ThinkSystem DE4000H Hybrid, DM5000, SD630 V2

STARTECH
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, 10GE - Lifetime Warranty (JD095CST) - 10GBase direct attach cable - SFP+ latched to SFP+ latched - 65 cm - twinaxial - SFF-8431/SFF-8432 - passive - black

STARTECH
StarTech.com 1000 ft Bulk Roll of Gray CMR Cat5e Solid UTP Cable - RJ45 Patch Cable - Cat 5e Patch Cable - Cat5e Patch Cable (WIRC5ECMRGRY) - Bulk cable - 304.8 m - UTP - CAT 5e - solid - grey - for P/N: ST121HDWP, STUTPWALLA, USB110EXT2

STARTECH
StarTech.com Dell EMC DAC-SFP-10G-2M Compatible 2m 10G SFP+ to SFP+ Direct Attach Cable Twinax, 10GbE SFP+ Copper DAC 10 Gbps Low Power Passive Mini GBIC/Transceiver Module DAC, SFP Plus - Lifetime Warranty (DACSFP10G2M) - 10GBase direct attach cable - SFP+ (P) latched to SFP+ (P) latched - 2 m - twinaxial - passive