DELL A6588858 COMP 16GB DDR3-1333MHZ ECC CL9 DR RDIMMAddOn 16GB DDR3 SDRAM Memory Module For Server 16 GB (1 x 16GB) DDR3 1333 PC3 10664 DDR3 SDRAM 1333 MHz Dual rank Memory CL9 1. 35 V ECC Registered 240 pin DIMM Lifetime Warranty VPN: A6588858 AM SKU: RSC750368 UPC: 821455323632 DIMM 16 GB of memory to maintain symmetry with processor and hard drive and bring out the ultimate computing experience 1333 MHz speed with Registered signal and CL9 latency to execute routine softwares at a steady pace DDR3