USB receiver for Dell Universal Pairing Wireless Keyboard Mouse KM714 KM717 | eBay
Universal Pairing USB Receiver for Dell Wireless Keyboard Mouse KM714 KM717 - AliExpress
Amazon.com: Dell Universal Pairing Receiver- WR221 WR221, USB Receiver, W126326704 (WR221 WR221, USB Receiver, 14.2 mm, 19.9 mm, 6.6 mm, Grey, Titanium) : Electronics