Lenovo TruDDR4 - DDR4 - module - 16 GB - DIMM 288-pin - 3200 MHz / PC4-25600 - 1.2 V - registered - ECC - for ThinkSystem SD630 V2, SD650 V2, SN550 V2, SR630 V2, SR650 V2, SR670 V2, SR860 V2, ST650 V2