Dell Universal Pairing Receiver- WR221

Compatibility Dell Premier Multi-Device Wireless Keyboard and Mouse – KM7321W Dell Premier Rechargeable Wireless Mouse – MS7421W Dell Pro Wireless Keyboard and Mouse – KM5221W Dell Mobile Wireless Mouse – MS3320W Dell Mobile Pro Wireless Mouse – MS5120W Dell Multi-Device Wireless Mouse – MS5320W Dell Multi-Device Wireless Keyboard and Mouse Combo – KM7120W Dell Wireless Keyboard and Mouse – KM636** Dell Wireless Mouse – WM126** Dell Premier Wireless Keyboard and Mouse – KM717** Dell Premier Wireless Mouse – WM527** Dell Wireless Laser Mouse – WM514** Dell Wireless Mouse – WM326** Dell Premier Wireless Keyboard – WK717** Dell Wireless Keyboard and Mouse – KM714** Dell Multi-Device Wireless Keyboard – KB700 Dell Compact Multi-Device Wireless Keyboard – KB740 Dell Wireless Keyboard – KB500 Dell Full-Size Wireless Mouse – MS300