This version of the RAM X-Grip was made specifically to support the Microsoft Surface Go tablet in any rugged environment, and consists of a composite spring-loaded cradle, expandable grip arms, and additional bottom support keeper. For quick release of the device, simply squeeze the easy access knobs located on the back of the holder. Included side stabilizers allow you to rotate and secure the Surface Go in either portrait or landscape mode. Featuring AMPS and VESA hole patterns on the back of the holder, the RAM-HOL-UN9-DFSU is compatible with a wide variety of RAM double ball mounts. The RAM X-Grip cradle is compatible with tablets devices that will fit the dimensions listed below. It is important to verify the dimensions of your tablet with a case/sleeve/skin when determining the overall size. This part is structurally the same as the RAM-HOL-UN9U, however it also comes with some blue rubber cups and a rubber tether for additional device security.