Use MeritLine coupon code MLC730LN
MeritLine has this Premiertek PowerLink Speedy2 Wireless LAN Adapter for $39.99, but you can get it for $21.99 when you use the coupon code. The adapter features an outdoor range of up to 1500m / 4921 ft. Amazon
has the same item for $36.99. Shipping is free.