Lenovo 4Z57A10844 InfiniBand/fibre optic cable 1 m SFP28 Blue

Product Overview

AI-generated summary

At £1,218.95 ex-VAT for a 1m Lenovo SFP28 fibre/InfiniBand style cable, this is firmly in the “only buy it if you absolutely have to” bracket. Short, branded, and niche—so your real question shouldn’t be “is it good?” but “am I going to get hit by incompatibility or support hassle if I go cheaper?” If you’re building or maintaining an InfiniBand fabric (or a very specific Lenovo networking setup) where the vendor part number matters for qualification, then paying up can be worth it because it saves you time troubleshooting link issues and keeps you aligned with what Lenovo support expects.

That said, for most normal enterprise fibre runs, this kind of pricing is hard to justify. A 1m lead typically isn’t a place where you gain meaningful performance—cost comes from compatibility, not capability. I’d only recommend it if you’re locked into Lenovo/InfiniBand equipment, you need the exact correct optic/cable type for stability under load, and you’d rather avoid any “will this link train properly?” roulette. If you’re free to standardise and you’re not constrained by Lenovo qualification, you can usually get the same practical result for a fraction of the cost with properly specified alternatives.