Using a weird tongue-unfriendly code, Thanko introduced their newest foldable mini USB keyboard as USMINKBK (easy reading: US-MIN-KyBeKy 😉 ).
This set of foldable keyboard is pretty practical. Although it’s not as good to store as the flexible silicone rollable keyboard, you can actually fold this mini USB keyboard into a mini box for easy storage.
Thanko USMINKBK foldable Mini USB keyboard featuring 19mm key pitch, USB 1.1 or 2.0 interface, compatible with XP, VISTA, 7 and Mac OS X. The folded dimension is 91mm x 129mm x 20mm only, and it sells for 4,980 Yen in Japan.