Available in 3 standard versions as a "no charge" substitution for the normal GlideOut Upper Rack Bays in high rise standard, high rise extended, rolltop custom and rolltop custom quad-based desks. This is a great way to have some additional eye-level rack space while opening up the table top clearance for video displays or taller mix consoles. Available in 1x3RU, 2x3RU and 3x3RU models (3x3RU not fit desks smaller than the Rolltop Custom). These rack bays are fixed in place and supported from the table top and either desk side wall. Shipped as conveniently field installable (hardware included) either for right or left-handed use. Shown installed left-handed in leftmost photo and right-handed in center and right photo.