8GB 2666MHZ DDR4 ECC CL19 DIMM SR X8 HYNIX DKingston 8GB DDR4 SDRAM Memory Module 8 GB DDR4 2666 PC4 21300 DDR4 SDRAM 2666 MHz CL19 1. 20 V ECC Unbuffered 288 pin DIMM Lifetime Warranty VPN: KSM26ES8 8HD SKU: RSC895857 UPC: 740617312171 DIMM 8 GB bar will run multiple applications together and enhance your computer's performance 2666 MHz of memory speed with Unbuffered signal skillfully manages the variety of apps and computational tasks 2666 MHz of memory speed with CL19 latency skillfully