PC/Server 8 GB DDR4. 288-pin DIMM 1 x 8 GB. 1.2 V. ECC. Synology DDR4 Memory Module. Always select authentic Synology memory modules from local distributors for optimum compatibility and reliability. Installation of non-Synology memory modules can lead to system instability or boot failures. Synology will not provide complete product warranty or technical support if non-Synology memory modules are used for memory expansion. For more information on memory upgrade limitations, visit here.. Features. Compatible products. SA series:SA3200DUC series:UC320021 series:RS3621xs+, RS3621RPxs, RS2821RP+, RS2421RP+, RS2421+19 series:RS1619xs+18 series:RS3618xs17 series:RS4017xs+, RS3617xs+, RS3617RPxs. Country of origin. Taiwan. Memory voltage. 1.2 V. ECC. Yes. Memory form factor. 288-pin DIMM. Component for. PC/Server. Memory clock speed. 2666 MHz. Internal memory type. DDR4. Memory layout (modules x size). 1 x 8 GB. Internal memory. 8 GB. Buffered memory type. Unregistered (unbuffered). Logistics data. Harmonized System (HS) code. 84733020