The StarTech 4 Port PCI Express SuperSpeed USB 3.0 Card is a versatile and reliable port expansion card that offers 4 ports for USB 3.0 devices. With a form factor of CardBus and compatibility with PCI Express x1 ports, this card is suitable for a wide range of computers. It comes with a manufacturer warranty of 2 years and is designed for universal compatibility, making it a convenient choice for expanding the ports on your machine. The SATA power feature also allows for additional power supply for connected devices, making it a practical and efficient solution for your computing needs.