Slide rail kit for Sun Fire X2100 M2, X2200 M2, X4100, X4100 M2 x64 servers. Only fits in Sun Rack 900-38, Sun Rack 1000-38, Sun Rack 1000-42, or racks that have front-rear rail spacing between 610mm to 915mm (about 24" to about 36"). FOR FACTORY INTEGRAT