Components and Accessories for R8200 Racking System. Top Unit with 8U rack space. Base Unit with fixings for M10 or M12 Adjuster Feet, or W0980/ W0985/ W0990 style Castor. Optional Cross Brace for cable management or Mounting additional Rack Strip. Black Powder Coated. Suitable fasteners for racking equipment are S1170, S1045K & S1941 or S1940.