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Add a high-speed RS-232 Serial port to your computer through a PCI Express expansion slot

The PEX1S553 PCI Express Serial adapter card allows you to turn a PCI Express slot into an RS232 (DB9) serial connection. 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 to 4.11x, as well as MAC OS X 10.4 and above. The adapter card includes an optional half-height/low profile bracket, that lets you add a serial port to virtually any computer, regardless of the case form factor.

This product is a replacement for our PEX1S552 card.

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

The StarTech.com Advantage

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

StarTech.com 1 Port Native PCI Express RS232 Serial Adapter Card with 16550 UART, PCIe, Serial, PCIe 1.1, RS-232, Green, Microsoft WHQL, CE, FCC

StarTech.com 1 Port Native PCI Express RS232 Serial Adapter Card with 16550 UART. Host interface: PCIe, Output interface: Serial, Expansion card standard: PCIe 1.1. Product colour: Green, Certification: Microsoft WHQL, CE, FCC. Chipset: ASIX - MCS9922CV-AA, Baud rate: 460.8 Kbit/s, FIFO (First In, First Out): 128 B. Windows operating systems supported: Windows 10, Windows 10 Education, Windows 10 Education x64, Windows 10 Enterprise, Windows 10..., Mac operating systems supported: Mac OS X 10.10 Yosemite, Mac OS X 10.4 Tiger, Mac OS X 10.5 Leopard, Mac OS X 10.6 Snow Leopard,..., Server operating systems supported: Windows Server 2003, Windows Server 2008 R2, Windows Server 2012, Windows Server 2012 R2, Windows.... Width: 80 mm, Depth: 105 mm, Height: 20 mm