How come a mini USB drive has 5 contacts when a normal USB drive has only 4 contacts?

NachoMahma8 years ago
. Wikipedia is your friend
. Mini uses the extra pin for:
. Pin: 4
. Name: ID
. Description: permits distinction of Micro-A- and Micro-B-Plug (Type A: connected to Ground; Type B: not connected)
jeff-o8 years ago
The extra contact is probably connected to ground.