Rail Kit for 2U/3U rackmount models

pplied Model: TS-879U-RP, TS-1279U-RP, TS-EC879U-RP, TS-EC1279U-RP, TS-1679U-RP, TS-EC1679U-RP, WB-1200U-RP, WB-1600U-RP, TS-EC880U-RP, TS-EC1280U-RP, TS-EC1680U-RP, REXP-1220U-RP, REXP-1620U-RP, REXP-1220U-RP, TS-EC880U R2, TS-EC1280U R2, TS-EC1680U R2, TVS-EC880U-SAS-RP, TVS-EC1280U-SAS-RP, TVS-EC1580MU-SAS-RP, TVS-EC1680U-SAS-RP, TVS-EC880U-SAS-RP R2, TVS-EC1280U-SAS-RP R2, TVS-EC1580MU-SAS-RP, TVS-EC1680U-SAS-RP R2, TDS-16489U

please make sure the server racks conform to the following criteria: 

1. Rack size 
A. Mounting post width: ≥ 17.8"/451mm 
B. Panel width: ≥ 19.1"/485mm 
C. Mounting post depth: 22.8" ~ 34.4"/579.1mm~873.5mm

D. The distance between two rack posts is 18.3"/465mm (center-to-center measurement of the rack's square holes).