For mounting between 2 pairs of 482.6mm(19") mounting angles , vented shelf intergrated with a pair of telescopic sliders design provides smooth touch & convenience usually put keybard. Full ovat holes plate to increase heat-dissipation efficiency whiling putting componenets on plate can use a spacer to be a stopper to stem for not dropping down or totter components.
25 kgs surface
CLM-612083-xx vented plate
1 pair of telescopic slide rails , CLM-882126-xx
1 pair of rail brackets in rear , CLM-612097-xx
1 CLM-612105-xxx right bracket /
1 CLM-612106-xxx left bracket