CN900 4D Decoder works together with CN900,No need connect CN900 with laptop,
It can directly copy 4D Chips.

CN900 4D Decoder

CN900 4D Decoder connects directly with CN900 multiplexer, then you can copy 4D chip, no need to connect with the laptop.
It needs works together with CN900 key programmer, can not works alone.

Package List:

1pc x CN900 4D Decoder