QNAP RAM-16GDR4K2-UD-3200 DDR4 RAM. Features. Compatible products. TS-855X, TS-1655, TS-432PXU, TS-832PXU, TS-1232PXU, TS-432PXU-RP, TS-832PXU-RP, TS-1232PXU-RP, TS-1273AU-RP, TS-1673AU-RP. Memory form factor. 288-pin DIMM. Component for. NAS/storage server. Memory clock speed. 3200 MHz. Internal memory type. DDR4. Memory layout (modules x size). 1 x 16 GB. Internal memory. 16 GB. Buffered memory type. Unregistered (unbuffered)