TwinB Identity:
1. Moveable Optional Language Hard Disk , Can be used any PC and laptop (It is better for USB2.0 and 1G RAM and RS232 Port);  2. Red & Black Handle-lift;  3. "TwinB" Matrix on all accessories; 4. Exclusive designing for LED Port & Communication Port; 5. "OEM SCANNER" Matrix on Main Unit; 6. WARNING & Using Indication on the back of Main Unit.
Please check before you buy it. Some providers offer TwinB without those features, that is copy, so the quality can not be guaranteed. Customers need to take care, thanks!