AddOn 32GB DDR4 SDRAM Memory Module - 32 GB (1 x 32GB) - DDR4-2133/PC4-17066 DDR4 SDRAM - 2133 MHz - 1.20 V - ECC - Registered - 288-pin - DIMM - Lifetime Warranty

HP® H7B65A Compatible Factory Original 32GB DDR4-2133MHz Registered ECC Dual Rank x4 1.2V 288-pin RDIMM