10" Wall Track Wall Track is a low-cost, zero-footprint mounting system that attaches to most vertical surfaces. It accommodates an entire computer workstation. MSRP: $42.00 Part Number: 31-016-182 + Learn More 34" Wall Track Wall Track is a low-cost, zero-footprint mounting system that attaches to most vertical surfaces. It accommodates an entire computer workstation. MSRP: $88.00 Part Number: 31-018-182 + Learn More Medium CPU Holder (black) Ergotron CPU Holders offer a convenient method for storing your CPU or power supply—close to the action, yet out of the way. MSRP: $88.00 Part Number: 80-058-200 + Learn More Track Mount Bracket Kit for HD Arms (grey) Brackets are required for attaching components to Wall Track. Use this bracket with HD Arms. MSRP: $35.00 Part Number: 60-151-099 + Learn More HD Extender (black) Add an extender to your HD Arm and increase its reach by 18" (46 cm). MSRP: $125.00 Part Number: 44-396-200 + Learn More