ABS case for 4-unit rack - lightweight, stackable, moulded case made of high grade polyethylene for easy handling and durability - Removable front and rear lids(6 cm usual depth) w/ gasket sealed to protect equipment from moisture and dust, 2 front rails for rack-mount, 2 integral handles for easy portability - Usual inner dim.: 48.5(W)x42(D) cm(= 19 x 16.5 in.)