Lenovo 4H47A90333 SR645 V3 Direct Water Cooling Module KIT

Lenovo 4H47A90333 SR645 V3 Direct Water Cooling Module Kit

Overview

The Lenovo 4H47A90333 is a factory-new direct water cooling (DWC) module kit designed for high-density server deployments where air cooling alone cannot keep pace with sustained compute loads. Direct water cooling removes heat at the processor level rather than relying on airflow across the chassis — a meaningful shift when rack densities climb and ambient temperatures push the limits of conventional fan-based thermal management. At 10 lb, the 4H47A90333 is a substantial assembly built for professional installation in supported Lenovo ThinkSystem server platforms.

Compatibility

This kit is designed for the Lenovo ThinkSystem SR645 V3 server. Verify your specific SR645 V3 configuration — processor TDP, chassis revision, and data center coolant infrastructure (supply/return loop, flow rate, inlet temperature) — before ordering. Direct water cooling modules require facility-side liquid cooling support; this kit is not compatible with standard air-cooled rack deployments lacking a coolant distribution unit (CDU) or rear-door heat exchanger loop.

Installation Notes

Installation requires integration with a facility-side liquid cooling infrastructure. Confirm coolant supply and return line compatibility, flow rate requirements, and leak detection provisions before commissioning. Professional installation by a qualified data center technician is required — improper seating of water block connections is a live-system risk. Country of origin is Mexico (MX); UNSPSC code 43211600 (IT cooling equipment).