For its newsletter subscribers only, newegg offers the ASUS USB 2.0 Bluetooth 2.1+EDR Dongle, model no. USB-BT211, for $3.99 via the directions below. With free shipping, that's tied with our January mention and the lowest total price we could find by $9. Deal ends March 7. To get this deal:
  1. Add the ASUS USB 2.0 Bluetooth 2.1+EDR Dongle to your cart for $12.99
  2. apply coupon code "EMCXTXW69" and it drops to $8.99
  3. redeem this $5 mail-in rebate to get it for $3.99

Of note, this isn't Mac-compatible.