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Comtrol RocketPort EXPRESS 4J 4-port Serial Adapter

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by  COMTROL CORP.    |    PCN#  GC5433    |    MFG#  31305-2    |   
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Product Highlights:
  • PCI Express x1
  • 4 x Number of Network (RJ
  • 45) Ports
Product Condition: New and Factory Fresh
Limited Warranty: 5 Year
Shipping Weight: 1 lbs.
List Price: $379.00
Our Price: $212.84
You Save: $166.16 (44%)
  Protection Plan  Details
2-Year   $25.99
3-Year   $36.99

Comtrol RocketPort EXPRESS 4J 4-port Serial Adapter

Comtrol's RocketPort EXPRESS 4J serial port expansion card provides four "native" serial ports utilizing a single PCIe card slot and is compatible with all PCI Express bus architectures. The RJ45 serial ports, mounted on the edge of the card, support software configurable RS-232/422/485 serial communications at speeds up to 921.6 Kbps.

Every RocketPort serial card features the high-performance RocketPort processor chip, consisting of a dedicated 44MHz core that minimizes host CPU utilization and optimizes data transmission via larger transmit and- receive buffers than those of 16550 UART chips, commonly used in standard PC serial ports and low-end serial cards.

RocketPort technology enables these cards to outperform other serial expansion cards by handling the transmission of large amounts of data more reliably and efficiently.

Certified Windows drivers, support for the most popular operating systems, and readily available U.S.-based support makes the RocketPort 4J the perfect solution for projects requiring PC-based serial communication.

General Information

ManufacturerComtrol Corporation

Manufacturer Part Number31305-2

Manufacturer Website Address

Brand NameComtrol

Product LineRocketPort

Product Model31305-2

Product NameRocketPort EXPRESS 4J 4-port Serial Adapter

Product TypeSerial Adapter

Technical Information

Technical Information

Host InterfacePCI Express x1

Data Transfer Rate921.60 kbit/s

UART Type16550

Platform SupportedPC


Number of Network (RJ-45) Ports4

Physical Characteristics

Form FactorPlug-in Card



Weight (Approximate)2.90 oz


Package Contents
  • RocketPort EXPRESS 4J 4-port Serial Adapter
  • 1 x DVA
  • 1 x RJ45 Test Plug
  • Driver/Documentation CD
  • Diagnostic CD

Environmentally FriendlyYes

Environmental CertificationRoHS


Limited Warranty5 Year