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Item#: N82E16815158277CVF

StarTech 2 Port PCI RS422/485 Serial Adapter Card with 161050 UART Model PCI2S4851050

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The PCI2S4851050 2-Port PCI Serial Adapter Card (RS422/RS485) with 161050 UART adds two DB9 RS422/RS485 serial ports, using a single PCI expansion slot.

The PCI serial card offers a high performance 16C1050 UART and supports both 2-wire and 4-wire RS485 modes. The card delivers an efficient single-chip design and a large 256-byte transit/receive FIFO buffer that work together to provide high-speed serial communication while reducing the overall load on the system CPU.

With the included standard and low profile/half-height brackets, this PCI serial expansion card suits a broad range of system form factors, and is a perfect addition for connecting RS422/485 serial devices to a host computer. For added versatility, the RS422/RS485 adapter is able to accommodate 3.3 or 5V PCI/PCI-X slots.

Learn more about the STARTECH PCI2S4851050




PCI to Serial Port Card
External Ports
2 x Serial Ports
Operating Systems Supported
Windows 7 (32/64bit)/ Vista(32/64)/ XP(32/64)
Windows Server 2008 R2/ 2003(32/64)/ 2000
Linux 2.4.x/ 2.6.x
Card Type: Standard Profile

Max Baud Rate: 128000bps

Data Bits: 5, 6, 7, 8

Stop Bits: 1, 1.5, 2

FIFO: 256-byte Transmit/Receive

Parity: Even, Odd, or No Parity

Flow Control: Xon, Xoff, RTS#, CTS#

Industry Standards: PCI Local Bus Specification 2.3

PCI Power Management 1.1

Bus Type: PCI / PCI-X (5 / 3.3V)

External Ports: 2 - DB-9 (9 pin; D-Sub) Male

Operating Temperature: 0°C to 85°C (32°F to 185°F)

Storage Temperature: -40°C to 85°C (32°F to 185°F)

Chipset ID: SystemBase SB16C1052PCI


Supports PCI Power Management 1.1

Compliant with PCI Local Bus Specification 2.3

Supports maximum data transmission rate of 12.8kbps

Supports Hardware and Software flow control

Jumper pins for RS422/485 toggling

16C1050 UART with 256-byte Deep FIFO

Supports 2-wire and 4-wire RS485 modes

Dimensions & Weight

1.77" x 4.72" x 0.59"
Warranty, Returns, And Additional Information
  • Return Policies
  • We want to ensure your holiday shopping this year is hassle-free. That’s why we’re automatically extending our return policies on almost every product! For purchases placed between November 1, 2016 and December 24, 2016 you will have until January 31, 2017 to return your product. There's nothing additional that you have to do!
    • Return for refund until: January 31, 2017
    • Return for replacement until: January 31, 2017
  • This item is covered by's Extended Holiday Return Policy.
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