Synology D4ECSO 2666 16G 16 GB 1 x 16 GB DDR4 SO DIMM 2666 MHz ECC memory module Form factor___Micro Tower where our world class audio engineers where our world class audio engineers apply the advanced acoustic technologies and cutting edge computer modelling to give you perfectly balanced This also means that you can also easily share your high quality mobile computing visual experience 2 V ECC Yes Memory form factor 260 pin SO DIMM Component for PC Server Memory clock speed 2666 MHz Internal memory type DDR4 Memory layout (modules x size) 1 x 16 GB Internal memory 16 GB Buffered memory type Unregistered (unbuffered) Logistics data Harmonized System (HS) code 84733020 unbuffered