4 Port PCI RS232 Serial Adapter Card with 16550 UART - PCI4S550N

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5 out of 5
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Works well

by Ron on 7/4/2005

I put this card in a Linux machine and it works very nicely without needing any additional drivers or configuration. The 2.6 kernel serial driver picked it up with no problem. It doesn't get any better than that. Read More

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Product Overview

Add 4 RS232 serial ports to your PC, through a single PCI expansion slot. The PCI4S550 4-Port PCI RS232 Serial Adapter Card (16550 UART) adds four RS232 serial ports, using a single PCI slot - a cost-effective solution for connecting any new or legacy serial device, with data transfer rates of up to 115.2 Kbps.

A versatile serial solution, the PCI serial card lets you add 4 ports using only a single standard profile PCI slot on the system. The included breakout cable separates the ports to avoid cluttered connections.

Perfect for connecting serial modems, POS devices, PDAs, digital cameras, printers, ISDN terminal adapters and more to your system, the adapter card supports IRQ sharing and operates flawlessly in Windows(r) and Linux(r) environments.

Backed by a lifetime warranty and free lifetime technical support.


Mfg Part# PCI4S550N
SKU 10353775
UPC 065030795531
UPC 14 00065030795531
Product Type Serial Adapter / Serial Adapter
Ports 4 x 9-pin DB-9 Male RS-232 Serial / 4 x 9-pin DB-9 Male RS-232 Serial
Height 2.9" / 2.9"
Width 4.7" / 4.7"
Brand Name /
Form Factor Plug-in Card / Plug-in Card
Manufacturer /
Product Name 4 Port PCI Serial Adapter Card / 4 Port PCI Serial Adapter Card
Data Transfer Rate Up to 920 Kbps / Up to 920 Kbps
Manufacturer Part Number PCI4S550N / PCI4S550N
Limited Warranty 2 Year / 2 Year
Host Interface PCI / PCI
Weight (Approximate) 7.20 oz / 7.20 oz
Tech Specs
Ports 4 x 9-pin DB-9 Male RS-232 Serial
Product Type Serial Adapter
Manufacturer Part Number PCI4S550N
Manufacturer Website Address
Product Name 4 Port PCI Serial Adapter Card
Brand Name
Additional Information Guaranteed compatibility with any PC running Windows, DOS or Linux for simple integration into your application. Data transfer rates of up to 920 Kbps for peak serial device performance. Easy to install and use with full step-by-step instruction providing a hassle free serial solution.
Compatibility Plug and Play Operating System Supported: Windows 95 Windows 98 Windows Me Windows 2000 Windows XP Windows NT 3.1 Windows NT 4 DOS Linux
Certifications & Standards Safety Standards North America: FCC Safety Standards Europe: CE Safety Standards International: UL
Dimensions 2.91" Height x 4.72" Width
Weight (Approximate) 7.20 oz
Form Factor Plug-in Card
Input Voltage 3.3 V DCor 5 V DC
Host Interface PCI
Buffer 16 Byte
Data Transfer Rate Up to 920 Kbps
Platform Support PC
UART Type 16550
Standard Warranty Lifetime
$47.99 + free shipping
$70.99 You save $23.00 (32%)
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Works well by Ron on Jul 04, 2005