StarTech.com x4 PCI Express to SFF-8643 Adapter for PCIe NVMe U.2 SSD

Product Overview

AI-generated summary

For £21.73 ex-VAT, this StarTech x4 PCIe to U.2 (SFF-8643) adapter is the kind of “cheap and cheerful” piece you buy when you’ve already got U.2 drives and you just need to get them talking to a server or workstation with spare PCIe lanes. It’s a good fit for lab setups, small homelab/backup servers, or replacing a missing/failed adapter where uptime matters more than brand-new kit. If you’re planning to run one or a couple of U.2 NVMe drives and you’re not expecting fancy management features, it should do the job without drama.

That said, I wouldn’t treat it like a long-term enterprise backplane solution. If you’re building something mission-critical, double-check your server’s PCIe slot wiring and whether the host BIOS is happy with U.2/NVMe devices on an adapter—compatibility can be the real gotcha. Also, at this price point, you’re not paying for “nice-to-have” things like robust build/strain relief or broad validation across picky server chipsets. In short: buy it if you need a simple bridge from PCIe to U.2 for straightforward NVMe use; don’t buy it if you’re chasing guaranteed compatibility across unknown hardware or building a production system where adapter quirks would be painful.