Best option (CD400 with Embedded Bluetooth)

With the embedded Bluetooth, the Tachograph Programmer CD400 can connect to its Android App wirelessly which is the more convenient.

If your CD400 is equiped with Bluetooth, it will show the message "Bluetooth Ready for App" on Power ON.

Option 2: USB update cable with USB-C to USB adapter

If your CD400 has been supplied with the USB update cable, you will need to use a USB-C to USB adapter

Option 3: RS232 update cable with USB-C to RS232 adapter

If your CD400 has been supplied with the RS232 update cable, you will need to use a USB-C to RS232