This cradle is custom fit to the Zebra ET5x 10.1″ tablet with the Rugged Frame and the 30-pin connector and includes Key Lock. APPROVED FOR FORKLIFT INSTALLATIONS. Reinforced Acetal Corner Bumpers. Key Locking. USB 3.0 Port for attaching peripherals. AMPS and VESA 75MM Mounting Holes. Recommended with ProClip standard-duty or heavy-duty forklift mounts.