RAM® Tough-Dock™ perfectly secures the Zebra ET40 & ET45 10" enterprise tablets with Rugged Frame; includes set of keys for locking capabilities; MIL-STD 810G Shock and Vibration tested. Compatible with C and D size RAM® 4-hole AMPS and 75mm x 75mm VESA pattern bases for attaching a double socket arm; ball and socket technology allows for near-infinite adjustability. Dock accommodates tablet add-ons such as the Expansion Back and PowerPack Battery; tablet scanning works while tablet is docked. Backed by a lifetime warranty