Lenovo 4X97A80389 SR645 10X2.5 BP NVME Cable KIT V2

Lenovo 4X97A80389 SR645 10x2.5 NVMe Backplane Cable Kit V2

Overview

The Lenovo 4X97A80389 is a factory-new NVMe cable kit designed for the ThinkSystem SR645 server platform, enabling backplane connectivity for up to ten 2.5-inch NVMe drives. If you are expanding an SR645's storage configuration or replacing a damaged cable assembly, this V2 kit provides the correct harness geometry and connector pinout for the 10x2.5 backplane — using a generic cable here risks mismatch at the backplane headers and incomplete drive enumeration by the firmware. At 2 lbs, the kit is a straightforward field-replaceable assembly rather than a tool-intensive component swap.

Compatibility

This cable kit is specified for the Lenovo ThinkSystem SR645 server (AMD EPYC-based 1U/2U platform). It targets the 10x2.5-inch NVMe drive backplane configuration specifically — not the SAS/SATA backplane variants or alternate bay counts (e.g., 8x2.5 or 4x3.5 configurations). Verify your SR645's backplane part number and bay configuration before ordering; Lenovo's SR645 supports multiple backplane options and the cable routing differs between them. This is a V2 revision — confirm your backplane assembly revision matches.

Installation Notes

Route cables per the SR645 service guide to avoid pinch points near the system board and processor airflow baffles. NVMe backplane cables on the SR645 are keyed but snug — seat each connector fully until it clicks; a partially seated NVMe cable will prevent the connected drives from appearing in the UEFI device list. No special tooling is required beyond standard ESD precautions and a Phillips screwdriver for baffle removal. Torque specifications are not published in the available evidence — consult the SR645 hardware maintenance manual for current guidance.