Japan's Buffalo has introduced what it calls the world's smallest USB dongle that provides an 802.1nn Wi-Fi wireless connection to attached computers, the WLI-UC-GN. Sized at 33mm by 16mm (about 1.3 by 0.6 inches) Buffalo's adapter is small enough to attach to smaller devices or to remain attached in a notebook bag. The product will allow users to connect to the Internet from wireless devices such as Sony's PSP, Nintendo DS and many smartphones, reportedly including the iPhone.

Thanks to Buffalo's AirStation OneTouch Secure System (AOSS) feature, users can press a button to enable Wi-Fi Protected Setup and have the product automatically detect and configure compatible wireless devices with a secure connection. The company estimates transfer speeds as fast as 150Mbps.

The WLI-UC-GN will sell for the equivalent of about $24 when it launches in Japan early in February; Buffalo sells some devices in the US but hasn't disclosed international plans. [via Akihabara]