Lenovo 4X97A86428 SR655 V3 2.5-Inch SAS Backplane Cable Kit
Overview
The Lenovo 4X97A86428 is a SAS backplane cable kit designed specifically for the ThinkSystem SR655 V3 server platform, targeting the 2.5-inch drive bay configuration (BP3 position). If you're expanding storage in an SR655 V3 or replacing a damaged backplane cable assembly, this kit provides the correct factory-matched cabling to restore full SAS connectivity between the backplane and the RAID/HBA adapter. Using the right platform-specific cable matters here — mismatched routing or connector pinouts on SAS backplane assemblies can prevent drives from being recognized or cause intermittent errors under load.
Compatibility
The 4X97A86428 is designed for the Lenovo ThinkSystem SR655 V3 server with the 2.5-inch BP3 backplane configuration. Confirm your chassis backplane designation (BP3) before ordering — Lenovo SR655 V3 configurations vary by drive bay count and backplane position, and cable kits are not interchangeable across BP1, BP2, and BP3 positions. This kit is not compatible with SR655 V2 or earlier generations, nor with SR650, SR630, or other ThinkSystem chassis. If you are sourcing cables for a data center rack buildout across multiple server models, verify each chassis backplane label independently.
Installation Notes
Routed SAS backplane cables in dense 2U chassis require careful management to avoid pinching against drive sleds or obstructing airflow paths. Lenovo's field service documentation for the SR655 V3 recommends powering down and disconnecting all power before any backplane cable work. The SAS interface on this kit connects to the server's storage controller or onboard SAS port — verify controller compatibility (HBA vs. RAID mode) before provisioning. At 10 lb, the kit ships with sufficient cabling for the BP3 bay assembly; no additional hardware procurement should be necessary for a standard BP3 installation.
