Information technology professionals rely on HP quality to ensure maximum productivity. As the power of applications processors memory adapters and storage devices increases high-end computer users are seeking ways to optimize their system performance. HP provides leading solutions adding new levels of performance availability flexibility and management. HP 8GB (1x8GB) PC3-10600 Registered CAS 9 Dual Rank x 4 DRAM Memory Kit Option Part# 500662-S21 (1 module per Kit)