QNAP RAM-16GDR4ECK1-UD-3200 16GB DDR4 ECC RAM, 3200 MHz, UDIMM, K1 version ey Features For Select QNAP Devices 16GB (1 x 16GB) Capacity 3200 MHz Clock Speed PC4-25600 288-Pin UDIMM 1.2V Unbuffered, ECC The 16GB DDR4 3200 MHz UDIMM ECC Memory Module from QNAP is a single RAM module that will let you upgrade the overall memory capacity of your compatible NAS. It features a capacity of 16GB, a clock speed of 3200 MHz (PC4-25600), and a 288-pin DIMM form factor. It operates using 1.2V, supports ECC technology, and is not buffered/registered. - Compatible withTVS-h1288X, TVS-h1688X, TS-h3088XU-RP This 3rd PARTY memory