newegg offers the ASUS Mini Wireless Bluetooth USB Adapter, model no. USB-BT211, for an in-cart price of $7.99. This $5 mail-in rebate cuts it to $2.99. With free shipping, that's a buck under our March mention and the lowest total price we could find by $11. This adapter features an operational range for up to 328-feet. Rebate expires June 30.