Wi-Fi 74Mbps is a promise attractive, but who wants to buy a new adapter cumbersome? GW-USMicronN of Planex proposes to make the upgrade painless, with what is probably the smallest adapter 802.11n USB so far: Its size is that 1/6e only of D-Link in the background, and preliminary tests show that its scope and transfer rates are up to competition. It also provides security comparable to that proposed by adapters larger. More reason to keep an eye on this key Wi fi N announced next month in the United States for $ 30 (23 €).