16GB ECC DR X8 DDR4 RDIMM 2666MHZ HP 840756-091 COMPAddOn 16GB DDR4 SDRAM Memory Module 16 GB (1 x 16GB) DDR4 2666 PC4 21300 DDR4 SDRAM 2666 MHz Dual rank Memory CL17 1. 20 V ECC Registered 288 pin DIMM Lifetime Warranty VPN: 840756 091 AM SKU: RSC296184 UPC: 195285049438 16 GB of memory can produce approx. 10K MIPS and as a result, your system gets more room to run complex apps. DIMM 16 GB of memory can produce approx. 10K MIPS and as a result, your system gets more room to run complex apps. 2666 MHz