- Cyber Security
The Guide to Network Security for Small Businesses
12 Oct, 2025




£19.03 inc. VAT
AI-generated summary
For £15.89 ex-VAT, this is the kind of SFP-to-RJ45 “just make it work” module you buy when you’re trying to get a patch working fast without paying for branded lead times. StarTech-style compatibility is usually decent in the real world, and if you’ve got Cat6/Cat5e cabling and need up to around 100m, it’s perfectly sensible for access switches, small server racks, and office/network closets where you don’t want to terminate fibre or run another optic. Value-for-money is strong here—especially for one-offs or a small spares pool.
That said, it’s not the choice I’d make as a long-term, high-availability standard unless you’ve already validated it in your specific switch model. With SFPs, compatibility quirks can show up (typically around link stability, optics/QoS expectations, or how picky the switch is about the transceiver’s diagnostics), and “SFP compatible” isn’t the same as “bulletproof on your exact hardware.” If you’re rolling this into production, buy one first (or test from your spares shelf) and confirm link comes up reliably at the expected speed—otherwise you’re saving pennies and spending hours.

ATEN
ATEN UC485 - Serial adapter - USB - RS-422/485 x 1 - for ATEN UEH4002A, US3344I

STARTECH
StarTech.com USB to Serial Adapter - 2 Port - COM Port Retention - FTDI - USB to RS232 Adapter Cable - USB to Serial Converter (ICUSB2322F) - Serial adapter - USB - RS-232 x 2 - black

STARTECH
StarTech.com - USB cable - USB-C (M) to USB-C (M) - USB4 / Thunderbolt / DisplayPort 2.1 - 1.01 m - 4K120Hz support, 8K60Hz support, extended power range (EPR), Power Delivery 3.1 support - white

STARTECH
StarTech.com MSA Uncoded Compatible 1m 40G QSFP+ to QSFP+ Direct Attach Breakout Cable Twinax, 40 GbE QSFP+ Copper DAC 40 Gbps Low Power Passive Transceiver Module DAC, 40GE QSFP+ Cable - Lifetime Warranty (QSFP40GPC1M) - 40GBase direct attach cable - QSFP+ latched to QSFP+ latched - 1 m - twinaxial - SFF-8436 - passive - black