Linksys offers its refurbished Linksys AC1200 802.11ac Amplify WiFi Dual-Band Range Extender
with free shipping
. That's $5 under our mention from May and the lowest price we've seen. (It's also at least $24 less than you'd pay for a new one.) This dual-band range extender features two external antennas.
Note: A 90-day Linksys warranty applies.