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StarTech 1-port PCI Express RS232 Serial Adapter Card - PCIe Serial DB9
SKU# AC27043, Model# PEX1S953LP


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SKU # AC27043 | Model # PEX1S953LP | Brand StarTech

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1 port DB9 serial controller card w/ 16950 UART using ASIX AX99100 w/bi-directional RS232 speeds up to 921.6Kbps per port; avail. 256 byte FIFO buffer and 9th data bit - PCI Express RS232 serial adapter card w/power output of 12v/5v/none on DB9 pin 9 w/up to 2A - Expansion card pre-installed w/ 1x low profile PCI-e bracket (standard profile incl.) - Windows XP and up/Linux; Compliant w/ PCIe 1x Rev 1.1 and PCI pwr mgmt 1.2 - Use in PLCs/control/automation/medical/scanners - Lifetime warranty

Manufacturer Warranty: Limited Product Lifetime Warranty
Manufacturer Contact Info: http://www.StarTech.com.au,
Rating: 4.0 stars - 67 reviews

This RS232 Serial Adapter Card lets you add an RS232 DB9 serial port to your computer through a PCI Express (PCIe) slot. It enables you to interact with serial devices such as card readers, printers, PIN pads, and modems, at speeds of up-to 921.4Kbps.

Maximum Compatibility

With broad OS support, including for Windows and Linux, this PCI Express card is easy to integrate into mixed environments. The card comes pre-configured with a low-profile bracket, and includes an optional full-profile bracket, so installation is easy regardless of the case form factor.

Experience Optimal Technology

This PCIe to serial adapter supports the following features:

  • Compatible with industry standard 16950 UART
  • Supports max baud rate of up-to 921.4Kbps
  • Provides 5/12V power output on Pin 9 when external power is connected
  • 128-byte depth FIFO per transmitter and receiver
  • Supports 9, 8, 7, 6, 5 data bits
  • Asix AX99100 chipset
  • PCI Express 1.1 compliant

PEX1S953LP is backed by a StarTech.com lifetime warranty and free lifetime technical support.

Connector Type(s)PCI Express x1 Male
External PortsDB-9 (9 pin, D-Sub) Male
Internal PortsLP4 (4 pin; Large Drive Power) Male Input
Humidity20~80% RH
Operating Temperature0°C to 70°C (32°F to 158°F)
Storage Temperature-20°C to 80°C (-4°F to 176°F)
Bus TypePCI Express
Card TypeLow Profile (SP bracket incl.)
Chipset IDAsix AX99100
Port StyleIntegrated on Card
Packaging Information
Package Height30 mm [1.2 in]
Package Length17 cm [6.7 in]
Package Width14.2 cm [5.6 in]
Shipping (Package) Weight112 g [4 oz]
Data Bits5, 6, 7, 8, 9
FIFO256 Bytes
Flow ControlNone, Xon/Xoff, RTS/CTS
Max Baud Rate921.6 Kbps
ParityNone, Odd, Even, Space, Mark
Serial ProtocolRS-232
Stop Bits1, 1.5, 2
Physical Characteristics
Product Height15 cm [5.9 in]
Product Length98 mm [3.9 in]
Product Width67 mm [2.6 in]
Weight of Product44 g [1.6 oz]
Description CDW 75 - 1st LineStarTech.com 1 Port RS232 Serial Adapter Card with 16950 UART - PCIe Card
Microsoft WHQL CertifiedYes
OS CompatibilityWindows® 7, 8, 8.1, 10
Windows Server® 2003, 2008 R2, 2012, 2012 R2, 2016
Linux 2.4.x to 2.6.x LTS Versions only
Special Notes / Requirements
NoteSelectable power output on pin 9 of the serial port
What's in the Box
Included in PackageFull-Profile Bracket
PCIe Serial Card
User Manual

SKU # AC27043 | Model # PEX1S953LP

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