DELL AA951241 COMP 16GB DDR4-2666MHZ ECC DRX8 RDIMMAddOn 16GB DDR4 SDRAM Memory Module 16 GB (1 x 16GB) DDR4 2666 PC4 21333 DDR4 SDRAM 2666 MHz Dual rank Memory CL17 1. 20 V ECC Registered 288 pin DIMM Lifetime Warranty VPN: AA951241 AM SKU: RSC713662 UPC: 195285053121 Whether you are playing games, using heavy loaded OS or video editing software, the 16 GB of memory will make them run in a flash 2666 MHz memory speed with CL17 latency for great multitasking capability 288 pin pin DDR4 SDRAM interface