Embedded USB to 1-Port RS-232 DB9 Serial Interface Adapter

Part: 2108   Model: SeaLINK+232.PC

(1 customer review)


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The 2108 is a single port embedded USB to RS-232 serial adapter intended for mounting directly to a PC’s chassis, eliminating the need for external converters and providing a clean, professional installation. The board is USB bus-powered, capable of data rates to 460 Kbps, and installs inside a low profile computer in a spare bracket location. The 2108 includes a low profile PC bracket and a 14-inch USB header cable (Item# CA260) that connects to most motherboard USB box header connectors and uses only one USB port per serial port.

Sealevel’s SeaCOM USB software drivers and utilities make installation and operation easy using Microsoft Windows and Linux operating systems. After installing the software, simply connect the SeaLINK® serial interface adapter to your USB port and the device is immediately recognized by the system as a standard serial port.

The 2108 is compatible with any low profile PC Express slot. A standard profile bracket  is also included. Other USB header cable options are available on a custom design basis.

Do you know that adapter design can impact your application? Find out how in this USB Serial performance report.


Additional information

PC Bracket

Low Profile, Standard Height

USB Specification

1.1 Compliant2.0 Compatible

USB Powered


Storage Temperature

-50°C to 105°C (-58°F to 221°F)

Serial Connector(s)


RoHS Compliant


Power Requirement

+5V @ 50mA



Operating Temperature

0°C to 70°C (32°F to 158°F)

Communications Chip


Max Data Rate

460.8K bps

Max Data Distance

50 feet

Host Interface(s)


Humidity Range

10 – 90% Relative Humidity, Non-Condensing

Electrical Interface



2.578" (L) x 1.31" (W)

# of Ports


  • Compliant with RoHS and WEEE directives
  • High-speed UART with 128-byte Tx FIFO and 384-byte Rx FIFO
  • Data rates to 460.8K bps
  • All modem control signals implemented
  • Powered by USB connection
  • Sealevel software supports Windows 98SE/ME/2000/XP/Vista and Linux operating systems
  • Includes 14-inch USB header cable (Item# CA260)
  • DB-9M connector

Windows Software

Software: SeaCOM - Windows

Linux Software

Software: SeaCOM - Linux


Datasheet: 2108

1 review for SeaLINK+232.PC

  1. Journey Systems

    Works Great
    We tested is part under Linux and Microsoft windows and had no problems. Thumbs up.

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