Lenovo 4P57A87056 ThinkSystem 800W 230V Titanium CRPS Hot-Swap Power Supply

Overview

The Lenovo 4P57A87056 is an 800W Common Redundancy Power Supply (CRPS) rated at 230V with Titanium-level efficiency, designed for hot-swap replacement in ThinkSystem server platforms. The CRPS form factor means it slots into shared power bays used across multiple server models — so one spare unit can service several chassis types. Titanium efficiency (≥94% at 50% load per 80 PLUS Titanium spec) directly reduces heat output and operating costs on 24/7 workloads: at 800W draw, the difference versus a Gold-rated supply translates to meaningful cooling savings in high-density racks over a deployment lifetime. Hot-swap capability lets you replace a failing unit without taking the server offline — critical in environments where unplanned downtime carries real operational cost.

Compatibility

The 4P57A87056 is designed for Lenovo ThinkSystem servers that accept the CRPS 800W 230V form factor. Verify your specific chassis against the Lenovo ServerProven compatibility matrix before ordering — CRPS bays are shared across families including select ThinkSystem SR and ST series, but input voltage (230V) and wattage tier must match what your chassis power plane supports. This unit is not interchangeable with 115V or non-CRPS bays. Check your existing PSU label for the CRPS designation and 230V input rating to confirm a direct fit.