High Speed 921k PCI Express Serial Port Card 2port

 Without VATWith VAT
Base Price:€36,95€44,71
Part Number: PEX2S553S
Language: UK
Minimum Order Quantity: 1

Product Details


The PEX2S553S 2-Port PCI Express Serial Card lets you add two ESD-Protected RS232 ports with 5V or 12V selectable power output, through a PCI Express slot.

Ideal for industrial environments, this 2-port serial card offers built-in 15KV ESD-protection which helps prevent damage to connected devices in the event of line surges and electro-static discharge. An extended operating temperature range (-30°C to 75°C) also helps to ensure performance in harsh environments.

For devices that require additional power, this serial controller has a jumper-selectable 5V or 12V power output option (pin 1 and/or pin 9), through an LP4 connection to your power supply. For added flexibility, the power output can be enabled or disabled on a per-port basis so you choose which port(s) supply power.

This versatile RS232 card supports high-speed serial data rates up to 921.6 Kbps, and is compliant with PCIe Gen 2.0 specifications for added bandwidth. To maximize installation options, the 2-port card is equipped with a standard profile bracket and includes an optional low-profile/half-height bracket for installation in small form factor computers.

Backed by a lifetime warranty and free lifetime technical support.

Benefits and Features:

  • Protect your system from damage with integrated ESD Protection
  • Communicate efficiently with connected devices with high-speed 921Kbps support
  • Power connected serial devices on pin 1 and/or pin 9 with flexible per-port power output settings
  • 921.6 Kbps max baud rate
  • 15KV ESD (Electro-Static Discharge) Surge Protection
  • Jumper-selected 5V or 12V power output on Pin 1 and/or Pin 9
  • Extended operating temperature range (-30°C to 75°C)
  • Standard profile bracket installed, low profile included
  • 256 Byte FIFO per transmitter and receiver
  • PCI Express Base Specification 2.0 Compliant (backward compatible with 1.0a/1.1)


Connector Type(s)PCI Express x1 Male
External PortsDB-9 (9 pin; D-Sub) Male
Humidity5~95% RH (Non-Condensing)
Operating Temperature-30°C to 75°C (-22°F to 167°F)
Storage Temperature-40°C to 85°C (-40°F to 185°F)
Bus TypePCI Express
Card TypeStandard Profile (LP bracket incl.)
Chipset IDExar - XR17V352
Industry StandardsPCI Express Base Specification 2.0
Port StyleIntegrated on Card
Package Contents
Included in PackageDriver CD
Instruction Manual
Low Profile Brackets
PCI Express Serial Card
Packaging Information
Shipping (Package) Weight171 g [6 oz]
Data Bits5, 6, 7, 8
FIFO256 Bytes
Flow ControlNone, Xon/Xoff, RTS/CTS, DTR/DSR
Max Baud Rate921.6 Kbps
ParityEven, Odd, Mark, Space, None
Serial ProtocolRS-232
Stop Bits1, 1.5, 2
Surge Protection15KV ESD
Physical Characteristics
Product Height98 mm [3.9 in]
Product Length121 mm [4.8 in]
Product Weight59 g [2.1 oz]
Product Width18 mm [0.7 in]
OS CompatibilityWindows® 8 / 8.1 (32/64bit), 7 (32/64), Vista (32/64), XP (32/64), 2000
Windows Server® 2012, 2008 R2, 2003
Linux 3.0, 2.6.32, 2.6.31, 2.6.27, 2.6.16
Special Notes / Requirements
System and Cable RequirementsAvailable LP4 power supply connector (if additional power is required for connected devices)
Available PCI Express slot