The Logitech USB Unifying Receiver dongle Model C-U0007 is a black wireless receiver designed for use with Logitech mice and keyboards. It offers convenient USB connectivity and is tested for reliability. This receiver is a versatile solution for those looking to connect their wireless peripherals to their computer without the need for a dongle for each device. With its compact size and easy setup, the Logitech USB Unifying Receiver is a practical choice for users seeking a seamless wireless experience.