2port High Speed 921k Pci - Express Serial Port Card

£ 27.99  inc. vat

£ 23.32 ex. vat

2port High Speed 921k Pci - Express Serial Port Card

QuickFind: 645583 Mfr part code: PEX2S553S
  • 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

Product Description

2port High Speed 921k Pci - Express Serial Port Card

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 StarTech.com lifetime warranty and free lifetime technical support. The StarTech.com Advantage
  • 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

Technical Specification

2port High Speed 921k Pci - Express Serial Port Card

Software / System Requirements

OS Required Microsoft Windows 2000 / XP, Microsoft Windows Server 2003, Microsoft Windows Server 2008 R2, Windows 10 (32/64 bits)
Software Included Drivers & Utilities

Manufacturer Warranty

Service & Support Limited warranty - lifetime
Service & Support Details Limited warranty - lifetime


Device Type Serial adapter
Form Factor Plug-in card
Interface (Bus) Type PCI Express 2.0


Ports RS-232 x 2
Connectivity Technology Wired
Data Link Protocol RS-232
Data Transfer Rate 921.6 Kbps

Expansion / Connectivity

Interfaces 2 x RS-232 - 9 pin D-Sub (DB-9)


Compliant Standards FCC, RoHS

Dimensions & Weight

Width 1.8 cm
Depth 12.1 cm
Height 9.8 cm
Weight 35 g

Environmental Parameters

Min Operating Temperature -30 °C
Max Operating Temperature 75 °C
Humidity Range Operating 5 - 95% (non-condensing)

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2port High Speed 921k Pci - Express Serial Port Card

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£ 27.99  inc. vat

£ 23.32 ex. vat

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