Lenovo 4C57A82406 ST650 V3 2.5IN NVME 8-BAY BP KIT

Lenovo 4C57A82406 ST650 V3 2.5-Inch NVMe 8-Bay Backplane Kit

Overview

The 4C57A82406 is a 2.5-inch NVMe 8-bay backplane kit designed to expand or configure direct NVMe storage connectivity inside the Lenovo ThinkSystem ST650 V3 tower server. Rather than relying on a SAS/SATA backplane, this kit routes storage traffic over NVMe — the protocol difference matters operationally because NVMe eliminates the translation overhead inherent in SAS HBA stacks, delivering lower latency for workloads that are storage-bound, such as database servers, video surveillance recording nodes, or high-throughput analytics platforms. At 10 lb, this is a structural chassis component, not a cable add-on — plan for a deliberate installation window rather than a hot-swap operation.

Compatibility

This backplane kit is designed for the Lenovo ThinkSystem ST650 V3 tower server platform. It targets the 2.5-inch drive bay configuration within that chassis. If your ST650 V3 is currently configured with a SAS/SATA backplane or a different bay count, verify the target bay slot and server firmware revision against Lenovo's ST650 V3 configuration guide before ordering — backplane kits for this platform are chassis-position-specific and not interchangeable across form factors. This kit is not compatible with ST650 V2 or earlier ST650 variants; the V3 chassis geometry and NVMe signal routing differ from prior generations. For the broader Lenovo server and storage line, confirm the exact server generation and desired drive interface before selecting a backplane option.

Installation Notes

Installation requires partial disassembly of the ST650 V3 chassis to seat and cable the backplane. NVMe backplanes in this class connect via OCuLink or direct PCIe cable runs to the system board or a PCIe riser — confirm cable kit inclusion or order separately based on your specific ST650 V3 configuration. Country of origin is Mexico (MX). UNSPSC commodity code: 43211502 (computer storage devices and media).