Featuring a key lock for theft deterrence, the RAM® Holder works with the Zebra ET401 with RAM® Skin™ or ET40 & ET45 10" with Rugged Frame. This holder allows the tablet's scanning function to work on the side, as well as tablet add-ons such as the Zebra Expansion Back and PowerPack Battery. This vehicle holder is compatible with C and D size RAM® 4-hole AMPS and 75mm x 75mm VESA pattern bases for attaching a double socket arm in order to complete your mounting solution. Take the solution a step further by taking advantage of the built-in 2-hole mounting plate compatible with RAM® 2-hole diamond base for additional device mounting such as a phone or other handheld device.