HP 501536-001 COMP 8GB DDR3-1333MHZ ECC 1.5V DR RDIMMAddOn 8 GB DDR3 SDRAM Memory Module For Server 8 GB (1 x 8GB) DDR3 1333 PC3 10600 DDR3 SDRAM 1333 MHz Dual rank Memory CL9 1. 50 V ECC Registered 240 pin RDIMM Lifetime Warranty VPN: 501536 001 AM SKU: RSC650574 UPC: 821455579299 RDIMM 8 GB bar will run multiple applications together and enhance your computer's performance Up to 1333 MHz memory speed with Registered signal to manage your routine softwares with pace and accuracy 240 pin pin DDR3 SDRAM