Antaira MSC-104A1 4-Port RS-232 Universal PCI Card

4-Port RS-232 Universal PCI Card
Model: MSC-104A1
Availability: Discontinued
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Antaira MSC-104A1 Universal PCI Card with 4 Ports of RS-232 Serial Communication

The MSC-104A1 from Antaira is a high-performance PCI serial I/O interface providing four ports of RS-232.  Based on the 16C950 UART, it adds extra serial ports to your home computer, industrial server or workstation.  It’s ideal for connecting legacy serial-based equipment like printers, card readers, instruments, meters and more.  The MSC-104A1 features a large 128-byte FIFO and high baud rate.  The DB-44 front panel connector breaks out to four DB-9 connectors using a conversion cable.  This card is fully PCI plug-and-play compatible and has proper IRQ and I/O addressing to work with current and older Windows operating systems.


  • 4 RS-232 serial ports, 16C950 UARTs
  • Full PCI 32-bit 133MB/sec transfer speed
  • Fully compliant to the PCI bus specification revision 3.0
  • Supports both 3.3V and 5V powered PCI slots
  • 128-byte FIFO and 921.6 kb/s maximum baud rate
  • +5V or 12V available over pin 9 of the DB-9M connector
  • Automated bi-directional in-band flow control using programmable Xon/Xoff
  • Automated out-of-band flow control using CTS#RTS# and/or DSR#DTR#
  • 5 year warranty
  • The MSC-104A1 includes a break-out cable, CD with Windows and Linux drivers, utilities and a quick start guide

The PCI plug-and-play software installs easily following the wizard found on the CD.  The wizard recognizes the board and automatically installs the device driver software.  You’ll be up and running in minutes.

Total Ports4
TypeUniversal PCI
Operating System SupportWindows, Linux
Serial Interface
Serial Ports4 x RS-232
Baud RateUp to 921.6 Kbps
Data Bits5, 6, 7, 8, 9
ParityNone, Odd, Even, Mark
Flow ControlXon / Xoff
SignalsCTS, RTS / DSR, DTR
Host Controller16C550/16C950 UART Compatible
Serial PowerSelect 5 VDC or 12 VDC over DB9 pins
FIFO128 Byte
Connector Type4 x DB9 male connectors via cable
Operating Temperature0 to 55°C
Storage Temperature-40 to 75°C
Humidity5 to 95% non-condensing
CertificationsCE, FCC, RoHS
Warranty5 Years
Tags: MSC-104A1