Microsoft Wireless Desktop Receiver 3.1 USB Model 1028 Replace Keyboard & Mouse Dongle, Tested WorkingUpgrade or replace your dongle with this official Microsoft Wireless Desktop Receiver 3.1 (Model 1028).* USB type dongle for use with Microsoft wireless keyboard/mouse sets.* Fully tested reliable performance in pairing your Microsoft wireless peripherals.* Compact, portable, and plug-and-play no driver necessary on most modern Windows systems.* Ideal replacement if original receiver is lost or damaged.* Condition may show light wear if used; see photos for cosmetic details.Ships with tracking. Let me know if you need help confirming compatibility with your keyboard or mouse.