With this test platform, the BMW CAS4 CAS4 + key can be programmed on the workbench by OBD without opening the machine cover, thus avoiding car power loss and data loss caused by long time unlocking of the CAS4 / CAS4 + on the car.
Off-site key programming.

It can also test whether CAS or key is working properly, which is the preferred platform for locksmith and automotive electronics. This test platform uses the original PCB connector for a more secure connection

The power supply must be a 12-15V, or 2amps - 5amps