Build Your Own Credit Card Sized USB Multitool
DIYer Chris Robinson solves this problem by stuffing four different USB cables into a credit card sized case. Included in this little case are a USB micro, mini, micro SD adapter, and an adapter. The cables are inside a case that includes handy magnet that keeps it from flipping open. Head over to Node for the full guide. How to Create a Credit Card Sized USB Multitool| Node