16GB MEMORY UP RX8 DDR4 UDIMM 2666MHZ ECCDell 16GB DDR4 SDRAM Memory Module For Server, Workstation 16 GB (1 x 16GB) DDR4 2666 PC4 21333 DDR4 SDRAM 2666 MHz 1. 20 V ECC Unbuffered 288 pin DIMM VPN: SNPVDFYDC 16G SKU: RSC679112 UPC: 740617286441 DIMM 16 GB of memory to maintain symmetry with processor and hard drive and bring out the ultimate computing experience 2666 MHz of memory speed with Unbuffered signal skillfully manages the variety of apps and computational tasks DDR4 SDRAM interface