The StarTech PEX2S552 PCI Express Adapter Card is a versatile serial adapter designed for expanding the port options on your computer. With two serial ports (RS-232) and compatibility with PCI and PCI Express ports, this card allows for easy connectivity to a variety of devices. Manufactured by StarTech, a trusted brand in computer components, this adapter card is a reliable option for increasing the functionality of your system. Made in Taiwan, this card is a high-quality product suitable for universal use.