The Startech PCI PEX4S553 Card is an advanced solution to add serial connectivity to desktop computers via a PCI Express 3.0 interface. Designed to fit a single PCIe slot, this internal network card offers 4 RS-232 serial ports with DB9 connectors, ideal for connecting industrial devices, legacy equipment, or systems requiring reliable serial communication. Featuring a native ASIX - MCS9904CV-AA chip and a 16550 UART, this card maximizes PCIe bandwidth, reducing CPU load by up to 48% compared to conventional serial cards. It supports transfer speeds up to 128 Kbit/s with 256-byte PEPS memory for smooth, stable communication. Its low-profile design includes four medium and low-profile brackets, enabling installation in nearly any case type, from standard towers to compact chassis, ensuring broad mechanical compatibility. Regarding software, the PEX4S553 supports various operating systems, including multiple Windows 10 and Windows Server versions, as well as Linux and macOS distributions from older versions like Tiger through Yosemite, facilitating integration in heterogeneous professional environments. Certified by CE, FCC, and REACH, it meets international quality and safety standards. Compact dimensions of 130 mm width, 120 mm depth, and only 19 mm height make it discreet and easy to fit inside systems without interfering with other components. This card is designed for users needing to expand their computerâs serial capacity with a robust, efficient solution compatible with industrial or control applications requiring stable RS-232 communication. In summary, the Startech PEX4S553 is a reliable, versatile technical option to extend serial connectivity in modern systems via PCI Express, combining performance, compatibility, and easy installation in a single device.
European Guarantee
Stock in Europe
Fast deliveries
European Certification
