A3 No RF Antenna Pass Thru. Gamber-Johnson's Panasonic A3 Tablet docking station (No RF) accommodates the tablet's hand strap with the extended battery. The front-located latch button makes one-handed docking/release very easy; attaches to most Gamber-Johnson motion attachments with the VESA 75mm mounting pattern. Port Replication: External Antenna Switch, Power Input, Ethernet (1), Fully powered USB 2.0 (2) (1.0A)