You Can Buy This Item from Amazon:

Bullet Point:

1) 100% brand new & high quality.
2) Precision manufacturing and works perfect.
3) Compatible with GoPro Hero 3 Hero 3+ Black and Silver Edition.
4) Come with U Shape Silicone Rubber Locking Plug as gift.

This USB side door cover is made by high quality materials.It is compatible with GoPro Hero 3 Hero 3+ black and silver edition cameras Perfectly.The surface of the USB side door cover feels good and smooth.It also can be use on Hero 4 Camera.

Package Includes:

1 x USB Side Door Cover for GoPro Hero 3/3+
1 x U Shape Silicone Locking Plug

Please Note: Accessories Only,The Camera is not included.