The PEX2S553 PCI Express serial card lets you turn a PCI Express slot into 2 RS232 (DB9) serial ports. Based on a native single chip design (no bridge chip), this 2-port serial adapter card allows you to harness the full capability offered by PCI Express (PCIe), and reducing the load applied to the CPU by as much as 48% over conventional serial cards.

The RS232 Serial Adapter Card (PEX2S553) 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 to 4.11.x, and MAC OS 10.4 and above.

Plus, the serial card includes an optional half-height/low profile bracket that allows the card to be installed in any PCI Express slot, regardless of the size of the computer case.

Specifications:

PERFORMANCE CONNECTOR(S) SOFTWARE SPECIAL NOTES / REQUIREMENTS ENVIRONMENTAL PHYSICAL CHARACTERISTICS Bus Type PCI Express Card Type Standard Profile (LP bracket incl.) Chipset ID ASIX - MCS9922CV-AA Interface Serial Port Style Integrated on Card Ports 2 FIFO 128 Bytes Max Baud Rate 460.8 Kbps Serial Protocol RS-232 Connector Type(s) 1 - PCI Express x1 Male External Ports 2 - DB-9 (9 pin, D-Sub) Male Internal Ports 1 - LP4 (4 pin, Molex Large Drive Power) Male OS Compatibility Windows® DOS, 95, 98SE, 2000, CE 5.0/6.0, Embedded System 2009, POS Ready 2009, XP Embedded, XP, Vista, 7, 8, 8.1, 10
Windows Server® 2003, 2008 R2, 2012, 2012 R2, 2016
Mac OS X® 10.4 to 10.10
Linux kernel 2.6.x to 4.11.x LTS Versions only Note Selectable power output on pin 9 of the serial port Humidity 5~85% RH Operating Temperature -10 C to 80 C (14 F to 176 F) Storage Temperature -20 C to 100 C (-4 F to 212 F) Color Green Product Height 0.8 in [20 mm] Product Length 4.1 in [105 mm] Product Weight 2.2 oz [63.5 g] Product Width 4.7 in [120 mm]