The TP-Link UB500 is a compact Bluetooth nano USB adapter designed to add wireless connectivity to your desktop or laptop. It utilizes the Bluetooth 5.0 standard to ensure a stable connection with a transmission range of up to 20 meters, allowing you to move around the room with your headset or speakers without losing audio quality. Its tiny black frame measures just 18.9 x 14.8 x 6.8 mm, meaning it can stay plugged into a USB 2.0 port permanently without blocking adjacent slots or snagging on your bag. This makes it a practical choice for users who want to connect keyboards, controllers, or phones to a PC running Windows 11, 10, 8.1, or 7. Because it is backward compatible with versions 4.0 down to 1.1, you can use it with a wide variety of older wireless peripherals as well.