Lenovo 4M17A80605 SR250 3.5 SATA&SAS 4-BAY BP X30 KIT V2

Lenovo 4M17A80605 SR250 3.5" SATA/SAS 4-Bay Backplane Kit V2

Overview

The Lenovo 4M17A80605 is a factory-new, genuine backplane upgrade kit designed to expand drive bay availability in compatible ThinkSystem servers. This V2 x30 kit provisions four 3.5-inch drive bays with dual-interface SAS and SATA support — giving you the flexibility to install either enterprise SAS spinning disks or SATA SSDs and HDDs in the same enclosure without swapping backplane hardware. If you're planning a storage density expansion or building out a direct-attached storage configuration on a ThinkSystem SR250, this is the correct hardware add-on to do it without compromise.

Compatibility

This kit is designed for the Lenovo ThinkSystem SR250 1U rack server platform. The x30 designation identifies the specific backplane generation for SR250 V2 systems — confirm your SR250 chassis revision before ordering, as V1 and V2 backplane assemblies are not interchangeable. The kit supports both SAS and SATA drive interfaces, meaning it works with enterprise SAS HDDs (12Gb/s and 6Gb/s), SATA HDDs, and SATA SSDs. It does not natively support NVMe U.2 drives — those require a separate NVMe backplane. For broader rack server storage expansion options, verify your SR250's PSU headroom and internal bay count before committing to a drive population plan.

Installation Notes

At 10 lb, the 4M17A80605 ships as a complete backplane assembly. Installation is an internal chassis procedure — plan for a full server power-down and follow Lenovo's SR250 field service documentation for backplane seating, cable routing to the onboard storage controller, and retention clip engagement. Ensure the SR250's storage controller supports the intended drive type (SAS requires a SAS-capable HBA or integrated controller; SATA-only controllers will not negotiate SAS protocol). Refer to Lenovo's server storage accessories category for compatible drive and controller pairings.