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Microsoft 365 vs Office 2021: Should You Subscribe or Buy?
14 Feb, 2026





£45.86 inc. VAT
AI-generated summary
At ~£38 ex-VAT, this is the kind of “small win” add-on you buy when you want a couple of extra high-speed USB ports and you don’t want to pay for a full docking station or a pricier USB controller card. In day-to-day office/engineering use it’s handy for things like fast external SSDs, USB NIC adapters (where supported by your OS and device), and offloading data without creating a big bottleneck through older onboard USB headers. StarTech generally makes decent, predictable hardware, and this should drop into most Windows and Linux setups without drama.
That said, I wouldn’t treat it like a network card even though the category label says “NIC”. It’s a USB host controller, so any “network” benefit is indirect—only if your use case is a USB-based device (and your specific USB Ethernet/Wi‑Fi adapter actually works properly through that controller/OS). Also, with USB bandwidth sharing, two ports mean you need to be realistic: if you run two heavy transfers at once, you’re still sharing the underlying PCIe/USB path rather than getting independent “everything at full speed.” If your goal is genuinely network performance, you’re usually better off with a proper PCIe Ethernet card. But if you just need reliable extra 10Gbps-class USB-A/USB-C connectivity on a budget, this looks like good value.

STARTECH
StarTech.com Cisco SFP-10G-ZR-S Compatible SFP+ Module, 10GBASE-ZR, 10GbE Single Mode (SMF) Fiber Optic Transceiver, 10GE Gigabit Ethernet SFP+ LC Connector, 80km, 1550nm, DDM, Cisco ASR9000 - Lifetime Warranty (SFP-10G-ZR-S-ST) - SFP+ transceiver module (equivalent to: Cisco SFP-10G-ZR-S) - 10GbE - 10GBase-ZR - LC single-mode - up to 80 km - 1550 nm - for Cisco 250 Series, Nexus 22XX, 31XX, 3548, 93180, 93XX, ONE Nexus 55XX, UCS 62XX, C4200

STARTECH
StarTech.com 4-port PCI Express RS232 Serial Adapter Card, PCIe RS232 Serial Host Controller Card, PCIe to Serial DB9, 16950 UART, Low Profile Desktop Expansion Card, Windows, macOS, Linux - Full/Low-Profile (PEX4S953LP) - Serial adapter - PCI Express x1 low profile - RS-232 x 4

STARTECH
StarTech.com 2-Port USB 3.0 Extender over OM3 Multimode Fiber, LC/LC, 2x 5Gbps USB-A Hub, 350m (1150ft) Range, Durable USB Fiber Optic Extender, Incl. 2x 10G MMF SFP+ modules - Optical USB Extender (F35023-USB-EXTENDER) - USB extender - USB 3.0 - over CAT 5e - 2 ports - up to 350 m - TAA Compliant

Lenovo
Broadcom 57504 - Network adapter - OCP 3.0 - 10/25 Gigabit SFP28 x 4 - for ThinkSystem SR630 V3, SR635, SR645 V3, SR65X V3, SR665 V3, SR675 V3, SR850 V3, SR860 V3