Item came from Panasonic Demo kit, in original box, but missing locking key.
it is unlocked, so can be used without key or you can buy key on E bay.
As part of my contract sold as used. Used to mount ToughPad FZ-M1 and
FZ-B2 in a
vehicle.
This one got extra HDMI port as well as 2 x USB ports, RS232 Port
and DUAL RF ports.
Does have port for power supply, no power supply included, just use your
Tablet power supply with it.