Steplessheight and width adjustments: height from 300 to 510mm (11.8" to 20.1...Stepless height and width adjustments: height from 300 to 510mm (11.8" to 20.1") , width from 88mm to 203mm (3.47" to 8" ), fit most ATX and micro_ATX computers. Hang your computer/PC under the desk, off the floor and away from dust, debris, pet fur...more