The HPE 408790-001-RFB heatsink assembly is a refurbished processor cooling component for compatible server systems. It attaches over the processor with the heatsink retaining bracket, helping transfer heat away from the CPU during operation.
The listing specifies LGA 771 (Socket J) and Intel Xeon processors. It names ProLiant DL380 G5 and ProLiant DL385 G5 among the compatible systems, making this a targeted replacement part for those configurations.
Thermal grease and an alcohol pad are listed as included. As a refurbished item, accessories may not all be supplied.