The DM-G5-POS is essentially the same as the DM-G5-PO pull out mount with the added facility of being able to swivel your Mac Pro™ 90⁰ once you pull out the unit on the slides. This allows full accessibility to the side of your Mac Pro™ for upgrades as well as full access to the rear of the unit for cabling requirements. The slide case screws to the bottom of your desk work surface. The Mac Pro™ simply slips onto the mount. A front flange keeps the unit securely in place. The DM-G5-POS takes an additional 3.00 inches (75 mm), making the total distance from the bottom of your desk work surface to the bottom of your Mac Pro™ 23.10 inches (577.50 mm). Available in black or silver.