Qnap Rackmount Rail Kit (RAIL-A01-35) Type: Rail kit for TS-x79 2U rackmount models Applied Model: TS-879U-RP/ TS-1279U-RP/ TS-1679U-RP/ TS-EC879U-RP/ TS-EC1279U-RP/ TS-EC1679U-RP Package: RETAIL