TF card transfer SD Card adapter plate, compatible with SD cards, but smaller than SD cards. 
1. Unlock Lock unlocking direction indicates the direction of showing the lock. 
2.PCB 1oz copper by the upgrade process to 1.5oz (copper thickness 50um, the ordinary is 35um), copper thicker, greater durability. 
3. Goldfinger and full board Immersion Gold design and production! Like the use of imported gold Molex deck. 
The clamshell design for easy replacement of permit card