 "HPE - DDR2 8 GB : 2 x 4 DIMM 240-pin" " HPE 240-pin 408854-B21 Server Memory CDW.com
"Boost the capabilities of your HP Workstation and keep it performing reliably with HP memory. Upgrading your memory is a cost-effective way to improve system performance when insufficient memory and hard drive paging is slowing your applications down." 
 "483403-B21 HP 8GB (2x4GB) PC2-5300 LP SDRAM Kit" "Null"
 "Description:Genuine HPE 8GB (2x4GB) Registered PC2-5300Low Power Dual-Rank SDRAM Memory KitPart Number(s) Option Part# 483403-B21 (2 x 4GB modules) Assembly 487005-061 (1 - 2 per kit)"
 Specifications: Category Proliant Memory Sub-Category Genuine HP Memory Generation PC2-5300 Part Number 483403-B21 Products ID 455453 Storage Capacity 8GB (2 x 4GB) Technology DDR II SDRAM Form Factor DIMM 240-pin Memory Speed 667MHz (PC2-5300) Application Server Memory Server Model HP Proliant Compatibility HP Proliant Servers Manufacturer Hewlett-Packard HP Serial Number Yes HP Logo Yes Guaranteed Genuine HP Yes