Newegg offers the ASUS Bluetooth 4.0 USB 2.0 Adapter, model no. USB-BT400, for $4.99 with free shipping, via the directions below. That's tied with our May mention and the lowest total price we could find by $5. It features transfer rates up to 3 MB/s. Deal ends July 9. To get this deal:

1. View the ASUS Bluetooth 4.0 USB 2.0 Adapter for $14.99
2. apply coupon code "EMCPCPG53" to drop it to $9.99
3. redeem this $5 mail-in rebate for the final price of $4.99