StarTech 2 Port Native PCI Express RS232 Serial Adapter Card with 16550 UART

If you're looking to expand your computer's connectivity, the PEX2S553 PCI Express Serial Card is an essential addition to your hardware setup. This high-quality, durable 2-port serial adapter card transforms a single PCI Express slot into two RS232 (DB9) serial ports, offering a reliable solution for connecting a multitude of serial devices to your computer.

Engineered with a native single-chip design that eliminates the need for a bridge chip, this efficient adapter card maximizes the high-speed potential of PCI Express (PCIe). It significantly reduces the load on the CPU by up to 48% compared to conventional serial cards, ensuring smoother and more stable performance.

The RS232 Serial Adapter Card is designed with versatility in mind, showcasing broad compatibility with a wide array of operating systems, including Windows 2000/XP/2003/Vista/Windows 7/Server 2008 R2 (32 and 64 bit), Linux Kernel 2.6.11 and up, and MAC OS 10.4 and above. This makes it a user-friendly choice for professionals who require seamless integration with various platforms.

Installation is made effortless with the inclusion of an optional half-height/low profile bracket, allowing for easy fitment in any sized computer case, whether it's a compact form factor or a full-sized tower. This product serves as an upgraded replacement for the PEX2S552 card, maintaining the legacy of quality and reliability.

Key features of this efficient 2-port native PCI Express RS232 serial adapter card include:

- Two high-speed RS232 serial ports capable of data transfer rates up to 460.8 Kbps, ensuring swift and efficient communication with serial devices.
- Compliance with PCI Express base specifications revision 1.0a, guaranteeing a stable connection and reliable performance.
- The inclusion of a half-height/low profile mounting bracket to accommodate various system form factors.
- Selectable power output on pin 9 for the serial port, providing versatility for connected devices.
- A 128-byte deep FIFO per transmitter and receiver, which minimizes the risk of data overflow and ensures smooth data flow.
- Native single-chip, single-lane PCI Express integration for optimal throughput and reduced latency.
- Automated out-of-band and in-band flow control using CTS/RTS, DSR/DTR, and programmable Xon/Xoff in both directions, which helps prevent data loss and ensures integrity during transmission.

The PEX2S553 is not only easy to install but also comes with comprehensive step-by-step instructions, saving you time and hassle during setup. Its applications are vast, suitable for self-service automated machines, POS retail systems, bank teller workstations, standard ATMs, and control of multiple surveillance/security cameras, among others. This adapter card is the perfect solution for any application that requires reliable and efficient serial port communication.