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For its members only, Costco offers the TP-Link Deco M9 Plus Tri-Band WiFi System with Built-In Smart Hub 3-Pack for $219.99 with free shipping. That's $10 under our April mention and the lowest price we could find by $79. Buy Now Features It connects to ZigBee, Bluetooth, and other Wi-Fi smart home products, and provides up to 6,500 square feet of coverage