Walmart offers the TP-Link Archer AC750 Dual Band 802.11ac Wireless Router, model no. C20i, for $29.95. Opt for in-store pickup to avoid the $4.97 shipping fee. That's tied with our mention from last June and the lowest price we could find now by $3. This dual-band router features four Ethernet ports, USB port, simultaneous 2.4GHz and 5GHz frequencies, and WEP, WPA, and WPA2 encryption.