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7406e Board with Included DB44 Male to (4) DB25 Male Cable (Item# CA199)
7406e Board with Included DB44 Male to (4) DB25 Male Cable (Item# CA199)

Part# 7406e


Low Profile PCI Express 4-Port RS-232 Serial Interface


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The 7406e low profile PCI Express serial interface provides four RS-232 serial ports. For maximum compatibility with a wide range of peripherals, the board supports all standard RS-232 modem control signals. The serial ports utilize a 16C954 UART with 128-byte Tx/Rx FIFOs that enables data rates to 921.6K bps for reliable high-speed communications in data intensive applications. This high-performance UART includes 9-bit framing support and is fully software compatible with legacy 16550 applications. In addition, the board derives a 62.5 MHz clock from the PCI Express link. This ultra-high speed clock is divided by a flexible 8-bit clock prescalar with 1/8 steps to provide support for the widest range of standard and non-standard baud rates.

The Sealevel SeaCOM software driver and utilities make installation and operation easy using Microsoft Windows and Linux operating systems.

The 7406e is a PCI Express X1 board compatible with any low profile PCI Express slot. If you have a standard size PCI Express slot, be sure to select the standard profile bracket. The board includes a 36 inch cable that terminates to four DB25M connectors.
Call for Price No
Host Interface(s) PCI Express
# of Ports 4
Electrical Interface RS-232
RoHS Compliant Yes
UART Series 950 UART
Serial Connector(s) DB25M, DB9M
PC Bracket Low Profile
Communications Chip 16C954
Oscillator 62.5 MHz
Max Data Rate 921.6K bps
Max Data Distance 50 feet
Cable Connector(s) DB25M (4)
Board Connector DB44F
Dimensions 4.70” (L) x 2.54” (H)
Operating Temperature 0 - +70C
Storage Temperature -50 - +105C
Humidity Range 10 - 90% Relative Humidity, Non-Condensing
  • • 16C954 buffered UARTs with 128-byte FIFOs
  • • Oscillator and clock prescalar support wide range of baud rates
  • • Supports 9-bit protocol framing
  • • Each port supports data rates to 921.6K bps
  • • PCI Express X1 compliant
  • • Compatible with all low profile PCI Express slots
  • • All modem control signals implemented
  • • Included 36" cable terminates to four DB25M connectors (Item# CA199)

Terminal Block Kit
Terminal Block Kit


DB25F to DB9M Adapter
DB25F to DB9M Adapter


Modular Adapter
Modular Adapter


Terminal Block
Terminal Block


DB25 Serial Cable
DB25 Serial Cable



Proudly Made in the USA
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