815098-H21 – HP 16GB DDR4-2666 MHz PC4-21300 ECC Registered CL19 288-Pin RDIMM 1.2V Memory Module Brand : HP Weight : 16 GB Product Voltage : 1.2V RAM Standard : DDR4-2666/PC4-21300 Column Access Strobe (CAS) : CL19 Rank : Single Rank x4 Quantity of Pins : 288-pin RAM Genre : RDIMM