The Belkin USB Busport Mobile CardBus PC Card F5U022 is a versatile laptop port expansion card that allows users to expand their laptop's USB capabilities. This CardBus card, designed by Belkin, is compatible with USB 2.0 external interfaces and does not require a dongle cable for use. With its compact form factor and easy compatibility with CardBus ports, this product is ideal for enhancing the connectivity options of laptops and desktop computers. Made in China, this Belkin USB Busport Mobile CardBus PC Card offers a convenient solution for expanding a computer's functionality.