2 Port Low Profile Native RS232 PCI Express Serial Card with 16550 UART

The PEX2S553LP low profile/half-height PCI Express Serial Card turns a PCI Express slot into two RS232 (DB9) serial connections.

The card is constructed using a native single chip design that lets you harness the full capability offered by PCI Express (PCIe), while reducing the load applied to the CPU by as much as 48% over conventional bridge chip serial cards.

The PCI Express RS232 Serial Adapter Card is compatible with a broad range 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 ships with a low profile/half-height bracket installed but includes an optional full profile bracket that lets you add 2 serial ports to virtually any computer (regardless of the case form factor).

This product is a replacement for our PEX2S552LP card.

Backed by a StarTech.com Lifetime warranty and free lifetime technical support.

• Native single-Chip, single lane PCI Express; 48% less cpu load, and increased performance
• Pre-configured with half-height mounting bracket for low profile systems, but includes a full profile bracket for versatility
• Easy to install and use with full step-by-step instructions saves time and hassle

• One high speed RS232 serial port with data transfer rate up to 460.8 Kbps
• Ships with half-height/low profile mounting bracket, includes optional standard profile bracket
• Single chip design optimizes speed and reliability
• Native single-chip, single lane PCI Express
• Selectable power output on pin 9 for the serial port
• Compliant with PCI Express base specifications revision 1.1a
• Automated out-of-band flow control using CTS/RTS and DSR/DTR
• Automated in-band software flow control using programmable Xon/Xoff in both directions
• 128-byte deep FIFO per transmitter and receiver