The Startech PEX1S953LP PCI card is a specialized solution that adds an RS-232 serial port via a PCI Express 3.0 interface, designed to connect classic serial devices to modern computers. This low-profile adapter, in green with compact dimensions (67 mm wide, 98 mm deep, and 150 mm high), supports Windows operating systems (including Windows 10 and Windows Server 2003, 2008 R2, 2012, and 2012 R2) and Linux, facilitating integration in diverse and mixed environments. Equipped with the Asix AX99100 chipset, the card supports data rates up to 921.4 Kbps, ensuring efficient and stable communication with devices such as card readers, printers, PIN Pad terminals, or modems requiring RS-232 connection. It also complies with the standard UART 16950 and features a 128-byte FIFO buffer for both transmission and reception, significantly improving real-time data handling. This card provides 5/12V output on pin 9 via an external power source connected through a 4-pin Molex connector, allowing external devices to be powered without additional wiring. Installation is simplified with an included low-profile bracket and an optional full-profile bracket, adapting to different case formats for greater physical versatility. The PCIe 1.1 host interface ensures compatibility with PCI Express slots, making it a reliable option for expanding serial ports on systems requiring professional RS-232 connections. The card, with its distinctive green color, has a mean time between failures (MTBF) of approximately 277,385 hours, reflecting robust and durable construction. Overall, the Startech PEX1S953LP is a key technical component for those needing to add standard DB9 serial ports to modern PCI Express systems, maintaining compatibility with current IT infrastructures while offering stable and efficient performance.
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