Lenovo 7Z57A03549 InfiniBand/fibre optic cable 15 m QSFP28 Blue

Product Overview

AI-generated summary

At £1,320 ex-VAT for a 15 m QSFP28 fibre cable, this is one of those items that’s easy to overspend on if you’re not absolutely sure you’re solving the right problem. The upside is it’s a proper, enterprise-grade InfiniBand/fibre optic interconnect from a reputable OEM—so if it matches your gear and link type, you can expect predictable performance and fewer “it should work” evenings. For data centre teams running InfiniBand fabrics, this kind of cable is typically about reducing risk and downtime rather than chasing cheap cost.

Who should buy it: teams with confirmed QSFP28 InfiniBand requirements, existing Lenovo storage/compute ecosystems, and a need for 15 m reach where optics, polarity, and compatibility must be right. Who should *not*: anyone still in the “maybe it’ll work” stage, mixed-vendor labs, or customers who don’t have documented fabric/port compatibility—because with fibre, wrong optics/cabling rules can mean it’s not a simple swap, and you’ll pay again. If your distances are flexible, it’s often worth benchmarking whether a shorter run or approved alternative optics/cables get you the same outcome for less. If you tell me what switches/servers you’re connecting (and the exact port type), I can sanity-check whether this price feels justified or whether you’re likely paying a premium unnecessarily.