Newegg has the TP-Link Archer T3U AC1300 Mini Wireless USB Adapter in $19.99 after coupon code “TPARCT3U” with free shipping.
Product Features:
- IEEE 802.11ac, IEEE 802.11a/b/g/n.
- 867 Mbps at 5 GHz.
- 400 Mbps at 2.4 GHz Wireless Data Rates.
- 2.4 GHz / 5 GHz.