- Network Admin
The Complete Guide to Business Wi-Fi Standards
22 Feb, 2026
£57.37 inc. VAT
AI-generated summary
For £48.10 ex-VAT for a 5m SFP+ direct-attach (DAC) twinax, this AddOn cable is the kind of “get it working now” option I’d consider for straightforward, short-reach links—think stacking/switch-to-switch runs in a data cabinet where you know the ports and optics tolerance are a good match. If you’re replacing a dead/failed DAC and your Force10 equipment is behaving with other vendor DACs, it can be very good value versus branded optics.
That said, I wouldn’t treat an “Force10 compatible” DAC as automatically interchangeable across all setups. DACs are usually picky about both link training and EEPROM compatibility, and when they don’t play nicely you can end up with flapping links, speed negotiation issues, or it simply not being recognised. So: buy it if you’re confident you’re matching the right vendor/platform generation and you can quickly test it; avoid it if you’re building something critical where you can’t afford “sometimes it works” behaviour. If you tell me the exact switch model and what you’re connecting to, I can give a much firmer thumbs-up or thumbs-down.

Dell
Dell Networking - SFP (mini-GBIC) transceiver module - 1GbE - 1000Base-LX - up to 10 km - 1310 nm - for Networking N1148, PowerSwitch S4112, S5212, S5232, S5296, PowerSwitch N1524

TP-Link
TP-Link TL-SM311LS Gigabit SFP module, Single mode, LC, 10KM

STARTECH
StarTech.com HPE 455886-B21 Compatible SFP+ Module, 10GBASE-LR, 10GbE Single Mode (SMF) Fiber Optic Transceiver, LC 10km, 1310nm DDM, HPE BladeSystem 562SFP+ 560SFP+, Mini GBIC Transceiver - Lifetime Warranty (455886-B21-ST) - SFP+ transceiver module (equivalent to: HP 455886-B21) - 10GbE - 10GBase-LR - LC single-mode - up to 10 km - 1310 nm - for HPE SimpliVity 380 Gen10 Node, 380 Gen9 Node, Virtual Connect Flex-10

STARTECH
StarTech.com 10 pack HPE J4859C Compatible SFP Module, 1000BASE-LX, 1GbE Single Mode SMF/MMF Optic Transceiver, 1 Gigabit Ethernet, LC Connector 10km, 1310nm DDM, HPE 1400 1700, Mini GBIC - Lifetime Warranty (J4859C10PKST) - SFP (mini-GBIC) transceiver module (equivalent to: HP J4859C) - 1GbE - 1000Base-LX - LC - up to 10 km - 1310 nm (pack of 10) - for HPE 1700, 2610, 93XX, Switch XL 10/100/1000, HPE Aruba 2530, 2930F 24, 2930F 48, 5406