Lenovo 7Z57A03543 InfiniBand/fibre optic cable 10 m SFP28 Blue

Product Overview

AI-generated summary

At **£487.58 ex-VAT for a 10 m Lenovo-branded InfiniBand/SFP28 fibre cable**, this is one of those “you’ll either pay for peace of mind or you’ll kick yourself later” items. If you’re running an InfiniBand fabric and need a guaranteed-compatible, properly matched cable to avoid link instability, I can see the appeal—especially in a datacentre where downtime is genuinely expensive. For buyers who’ve been bitten by flaky third-party optics/cabling, paying a premium for known behaviour is often worth it.

That said, this is **not** something I’d recommend for casual lab use or one-off tinkering. In many environments you can get equivalent performance with cheaper compatible alternatives (as long as your vendor/support stance allows it), and with fibre length being only 10 m, you can easily avoid overspending unless your support contract or internal policy insists on Lenovo parts. So: **buy it if you’re standardising on Lenovo and need predictable support/compatibility**; **skip it if you’re cost-sensitive and have already validated alternatives** in your specific chassis/switch stack.