Speed - DDR4-2666 CAS latency - 19 Density - 4GB Module type - UDIMM Extended timings - 19-19-19 Form factor - UDIMM Technology - DDR4 Voltage - 1.2V PC speed - PC4-21300 Kit Qty - 1 Specs - DDR4 PC4-21300 • CL=19 • Single Ranked • x16 based • Unbuffered • NON-ECC • DDR4-2666 • 1.2V • 512Meg x 64 • DIMM type - Unbuffered