D-Link Wi-Fi AC750 Dual Band Range Extender (DAP-1520) (Certified Refurbished) This Certified Refurbished product is tested & certified by D-Link to look and work like-new. The product includes all original accessories, and is backed by a 90-day warranty. Up to 750 Mbps (300 Mbps -2.4GHz and 433 Mbps - 5GHz) High-speed wireless AC connectivity for your laptops, smartphones and tablets Easily add dual band coverage to your existing single band router Compatible with any wireless router brand