AddOn 64GB DDR4 SDRAM Memory Module - 64 GB (1 x 64GB) - DDR4-3200/PC4-25600 DDR4 SDRAM - 3200 MHz Dual-rank Memory - CL17 - 1.20 V - ECC - Registered - 288-pin - DIMM

HP P06035-B21 Compatible Factory Original 64GB DDR4-3200MHz Registered ECC Dual Rank x4 1.2V 288-pin CL17 RDIMM