The Startech PEX1S553LP PCI Express card is an ideal PCI adapter to expand connectivity on standard or small form factor computers by adding an RS-232 (DB9) serial port. Designed to fit into a PCIe slot, this card provides a stable and reliable serial connection, based on a native single-chip design that maximizes PCI Express standard performance and reduces CPU load by about 48% compared to conventional serial port cards using bridge chips. Its compact and versatile green form factor includes a preinstalled low-profile/half-height bracket, plus an optional full-profile bracket for mounting in virtually any case, adapting to various hardware setups. The adapter supports a wide range of operating systems, compatible with multiple Windows versions including Windows 10 Education and Enterprise editions in both 32- and 64-bit, as well as various Linux kernels (from 2.6.11 to 4.11.x) and different macOS versions, ensuring smooth integration across diverse environments. Its controller chip, ASIX MCS9922CV-AA, supports data rates up to 460.8 Kbit/s, while efficient data handling is enhanced by a 128-byte FIFO (PEPS) buffer. Additionally, it features a 4-pin Molex power connector for stable power supply. The design complies with PCI 1.1 expansion card standards, with compact physical dimensions (80 mm wide, 105 mm deep, and 20 mm high) and a lightweight 44 grams, facilitating installation without adding excessive weight. This product succeeds the PEX1S552LP model, improving serial port reliability and compatibility in modern setups. Overall, the Startech PEX1S553LP offers an effective technical solution for users needing to expand serial ports on their systems via a PCIe card, combining efficiency, compatibility, and flexibility to meet various technical requirements.
European Guarantee
Stock in Europe
Fast deliveries
European Certification