Ergotron 80-063-200 CPU Holder Small Black Specifications: Description: Vertical Small CPU Holder (black) Includes CPU holder, bumpers CPU Size Range: 1-3/8 to 3-3/4 (35 to 95 mm) wide; accommodates most small form factor and ultra small form factor CPUs Weight Capacity: 50.00 lbs. Mounting Options: Mounts to sturdy vertical surfaces. Where applicable, attach to wood stud. To increase support, a Wall Track accessory (ordered separately) is recommended