The Microsoft 2.4Ghz Black Dongle Transceiver v7.0 Model 1423 OEM Genuine is a genuine Microsoft receiver unit designed for connectivity via USB. This black dongle transceiver is of the latest v7.0 model and is made in China. It is a reliable and efficient device to ensure seamless communication between a computer and a mouse or keyboard. This product is essential for maintaining a stable and consistent connection for a smooth user experience.