QNAP - 4GB DDR3 ECC RAM, 1600 MHz, long-DIMMTS-EC879U-RP, TS-EC1279U-RP, TS-EC1679U-RP, TS-EC1679U-SAS-RP, TS-EC1279U-SAS-RP, SS-EC2479U-SAS-RP, SS-EC1879U-SAS-RP, SS-EC1279U-SAS-RP, WB-1200U-RP, WB-1600U-RP, TS-EC880 Pro, TS-EC1080 Pro, TS-EC880U-RP, TS-1280U-RP, TS-EC1680U-RP, TS-EC2480U-RP (Note: When installing two memory modules, please ensure that they are the same size and ideally use the same type of RAM for both memory slots.)