Delock RS-232 Switch and Splitter 1 x Serial DB9 to 2 x USB 2.0 Type-B bidirectional

Item No. 87756
87756 1
87756 2


This bidirectional RS-232 switch and splitter by Delock connects one serial device such as printer, measuring device etc. with two USB ports and offers two different applications.

Splitter (both LEDs light up green)
The signals of the RS-232 device are simultaneously available on both USB ports of the splitter. This means that for example two programs can use the data from the RS-232 device at the same time.

Switch (one LED lights up green)
The data connection to the RS-232 device can be set with the switch. This allows one of the two computers to use the serial device for bidirectional data connection.

With the button can be used to activate USB port 1 or USB port 2 or both ports. The two LEDs indicate the respective switching status (switch or splitter).


  • Connectors:
    1 x USB 2.0 Type-B female >
    1 x serial RS-232 DB9 male with nuts
  • 1 mechanical button
  • Chipset: FTDI FT231XS
  • Data transfer rate up to 230.4 Kbps
  • FIFO: 512 Byte - RX
  • FIFO: 512 Byte - TX
  • LED colour: green
  • Plastic housing
  • No external power supply needed
  • Dimensions (LxWxH): ca. 60 x 50 x 25 mm (without button)
  • Colour: black

System requirements

  • Windows 8.1/8.1-64/10/10-64/11
  • PC or laptop with free USB ports

Package content

  • RS-232 switch and splitter
  • Driver CD
  • User manual


  • White Box

Here you can find information about RS-232

• RS-232 (EIA / TIA)
• USB 2.0
Connector 1
• 1 x serial Sub-D 9 male with nuts
Connector 2
• 2 x USB 2.0 Type-B female
Technical characteristics
Data transfer rate
• RS-232 up to 230 kbps
• 2 x 512 Byte
• USB to serial UART
Physical characteristics
Housing colour
• black
Housing material
• Plastic (ABS)
Screw type
• #4-40 UNC
LED colour
• green
All names and symbols mentioned here are property of the respective producer. Printing errors, changes and errors excepted.