The Microsoft 2.4Ghz Black Dongle Transceiver v7.0 Model 1423 OEM Genuine is a USB receiver unit designed for use with Microsoft peripherals. It is a black dongle transceiver that does not come with a custom bundle. Made in China, this genuine Microsoft product ensures reliable connectivity for your mouse or other pointing devices. With this transceiver, you can easily connect your device to your computer and enjoy seamless functionality.