Missing USB receiver. The Logitech K520 Wireless Full-Size Keyboard in black is a standard keyboard with a QWERTY layout, perfect for everyday use. It features multimedia keys for easy access to various functions. The keyboard is wireless, making it convenient for use without the hassle of cords. Made of durable plastic, this Logitech keyboard is designed for long-lasting performance and comfort during extended use. With its compact dimensions of 18.0 x 7.5 x 2.0 inches, this keyboard is suitable for any workspace.