http://www.amazon.com/dp/B006W8U2WU http://www.amazon.com/dp/B006W8U2WU its solid as a rock. its exactly the thickness of a USB connector (full size, not half)

http://www.amazon.com/dp/B006W8U2WU http://www.amazon.com/dp/B006W8U2WU its solid as a rock. its exactly the thickness of a USB connector (full size, not half) and fits great on a keychain. It's a bit bigger than the smallest ones you can find but it's good build quality and good speed.