K120 Tablet No RF Antenna Pass Thru. Gamber-Johnson Getac K120 Tablet docking station, the perfect companion to the Getac K120 computer and the command center for your mobile office. Port Replication: Ethernet (2) - RJ45, USB 2.0 (2) - 4 pin forward-facing, fast-charging (1500 mA), USB 2.0 (1) - 4 pin rear-facing (500 mA), USB 3.0 (1) - 9 pin fast-charging (1500 mA), USB 3.0 (2) - 9 pin (900 mA), VGA (1) - D-sub 9 pin, HDMI (1), RS232 Serial (1), Power Input - 19 Vdc.