USB Serial Adapter, 4-ports

    Model: UMC-104

€49,00 Ex VAT
€61,25 Inc VAT

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This is a desktop style USB to 4-ports RS232 converter built around the high performance FT232BL chipset from FTDI Semiconductors. Once the drivers are installed it will give you four individual COM ports in your computer's Device Manager which can be used almost as if they were regular built-in COM ports.
The COM ports can be used individually one by one or all at the same time.

The advantage of the FT232BL chipset is that not only does it offer high performance and reliability but it also offers multiple port settings which can be manually adjusted to match your particular serial device if the automatically adjusted settings does not work with your application.
Another advantage of the FT232BL chipset is that the drivers are updated frequently which means that this converter is fully compatible with the newest operating systems and also most older systems.

All four ports on this converter are protected against static electricity and most high voltage surges for up to 15KV, which protects your serial device and the converter itself from being damaged in case og high voltages.

This converter is powered by the USB port but can optionally be powered by an external 5VDC supply. An external power supply is usually only required if you connect serial devices which draw a high current or if you connect this converter via a USB hub.

The enclosure is made of aluminum with hard plastic ends and indication LED lights indicate when data is being sent and received on any of the four ports.

Overall features
  • Four individual serial RS232 ports
  • High performance FT232BL chipset
  • Works with most operating systems
  • Easy installation
  • Port-powered from USB bus
  • External power option
  • Supports most serial devices
  • Indication lights for all 4 COM ports
  • USB cable included with each converter

Useful optional accessories
(not included)

Null modem adapter
Null modem adapter

DB9 to RJ45 adapter
DB9 - RJ45 adapter

DB9 gender changer
Gender Changer

Part number UMC-104
Operating system
  • Windows 10 (32/64-bit), Windows 8 32/64, Windows 7 32/64, Vista 32/64, XP 32/64, Server 2003/8R2 32/64, 2000, ME, 98Se (WHQL compliant)
  • Linux
  • Mac OS 8, OS 9, OS X
  • Windows CE.NET (Version 4.2 and greater)
  • Android
Processor FTDI FT232BL
Serial driver Analog Devices ADM213
RS232 Interface RS232 DB9 Male x 4
RS232 output power 8.0VDC per port
Cable length 3 feet
USB interface Standard Type B Female
Indication LEDs TX, RX and Power
Ports 4-port
Signals TX, RX, RTS, CTS, DTR, DSR, RI and GND
Power on pin 9 No
Baud rate 300-921.600bps (up to 3kbps by using alising)
Parity None, Odd, Even, Mark, Space
Data Bits 7, 8
Stop Bits 1, 2
TX / RX buffer size 128 Byte Transmit Buffer / 384 Byte Receive Buffer
Adjustable USB transfer sizes for TX and RX From 64 bytes to 4096 bytes
Adjustable latency timer 1 to 255 msec
Adjustable read and write timeouts 0 to 10000 msec
Flow Control None, Xon/Xoff, Hardware
COM port accessible by Included virtual COM port drivers or FTD2XX.DLL
Special features
Electrostatic (ESD) protection 600W surge protection, 15KV static electricity protection
Current draw Static: less than 80mA. Dynamic average: less than 150mA
Housing Aluminum
Dimensions 5.90"(L) x 2.61"(W) x 1.02"(H)
Interface compliance USB1.1,2.0,3.0, EIA/TIA RS-232
Regulatory compliance FCC, CE and RoHS
Working temp -20°C to 60°C
Warranty 1 year limited warranty

For alternative USB to serial solutions please see our full selection of USB to Serial RS232 adapters

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