Startech 2-Port Low Profile 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(R) 2000/XP/2003/Vista(TM)/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.

Connector(s) Connector Type(s) PCI Express x1 Male External Ports DB-9 (9 pin, D-Sub) Male Internal Ports LP4 (4 pin, Molex Large Drive Power) Male Environmental 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) Hardware Bus Type PCI Express Card Type Low Profile (SP bracket incl.) Chipset ID ASIX/MosChip - MCS9922CV-AA Interface Serial Port Style Integrated on Card Ports 2 Packaging Information Shipping (Package) Weight 0.2 kg [0.4 lb] Performance FIFO 128 Bytes Max Baud Rate 460.8 Kbps Serial Protocol RS-232 Physical Characteristics Product Height 20 mm [0.8 in] Product Length 105 mm [4.1 in] Product Weight 63.5 g [2.2 oz] Product Width 80 mm [3.1 in] Software Microsoft WHQL Certified Yes 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 4.4.x LTS Versions only What's in the Box Included in Package DB9 Ribbon cable Driver CD Full Profile Bracket Instruction Manual Low profile bracket PCI-Express Serial Card