Lenovo 7XH7A05907 Thinksystem ST550 2.5INCH Anybay 8-BAY Backplane KIT

Lenovo 7XH7A05907 ThinkSystem ST550 2.5-Inch Anybay 8-Bay Backplane Kit

Overview

The Lenovo 7XH7A05907 is an 8-bay, 2.5-inch Anybay backplane kit designed for the ThinkSystem ST550 tower server. The Anybay architecture supports mixed drive populations — SAS, SATA, and NVMe U.2 — from a single backplane, eliminating the need to commit a storage bay configuration at deployment time. This matters in environments where storage requirements evolve: you can start with SATA HDDs and migrate lanes to NVMe SSDs without replacing the backplane or recabling the system. The kit weighs 3.15 lb and ships from Lenovo's manufacturing facility in Mexico.

Compatibility

This backplane kit is purpose-built for the Lenovo ThinkSystem ST550 tower server platform. It is not a universal fit — confirm your ST550 chassis revision and existing bay configuration before ordering. The ST550 ships in multiple storage configurations; this 8-bay 2.5-inch variant is intended for deployments requiring higher drive density with smaller form-factor media. Cross-compatibility with other ThinkSystem server components (ST558, SR550, SR650) is not confirmed in the available evidence — do not assume interoperability outside the ST550 platform.

Installation Notes

Physical dimensions are 21.40 × 16.10 × 4.30 inches — verify clearance inside your ST550 chassis bay before installation. As a server storage backplane assembly, installation requires powering down the system, disconnecting existing storage cables, and seating the backplane into the designated drive cage. No torque specifications, specialized tooling requirements, or environmental constraints are specified in the available evidence. Refer to the Lenovo ThinkSystem ST550 Hardware Maintenance Guide for chassis-specific procedures and connector maps before proceeding.