2 Port PCIe Serial Adapter Card w/ 16550

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

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Description & Features+

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 and up, 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. This product is a replacement for our PEX2S552 card. Backed by a StarTech.com Lifetime warranty and free lifetime technical support.

Native single-chip, single lane PCI Express chipset delivers true PCIe performanceStandard and low profile/half-height bracket included to ensure fitment in any systemEasy to install and use with full step-by-step instructions saving time and hassle

Product Label Contents:

2 Port PCI-Express Serial Card
Low Profile Brackets
Driver CD
Instruction Manual
Two high speed RS232 serial ports with support for data transfer rates up to 460.8 KbpsCompliant with PCI Express base specifications revision 1.0aIncludes half-height/low profile mounting bracketSelectable power output on pin 9 for the serial port128-byte deep FIFO per transmitter and receiverNative single-Chip, single lane PCI ExpressAutomated out-of-band flow control using CTS/RTS and DSR/DTRAutomated in-band software flow control using programmable Xon/Xoff in both directions


Available for Shipping to Canada Post
Shipping Product Length
8.39 IN
Shipping Product Width
1.50 IN
Shipping Product Height
5.43 IN
Shipping Product Weight
0.40 LB
Supplier Warranty
2 Year Warranty
Supplier Warranty Length
2 years
Product Identifiers
Walmart Item #
Model #
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