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Black Box USB to DB9 serial converter cable 43 inches

Black Box Corporation

Black Box Corporation IC199A-R4 USB to RS-232 DB9 Data Converter 43

SKU CH-FPAX-DD33P MPN IC199A-R4

Adds a serial port to a PC or server via USB with a 43-inch cable and speeds up to 230 kbps

  • Cable length43 in (109 cm)
  • Adapter typeUSB to DB9 (RS-232)
  • Product typeUSB to RS-232 Converter
  • Adds a serial port via USB without opening the PC
  • 43-inch cable reaches equipment across the bench
  • Port speeds up to 230 kbps for legacy gear
  • Configurable COM port assignment avoids conflicts
  • No external power required for simple setup

USB-to-Serial Converter for Legacy Devices

The Black Box IC199A-R4 adds a single RS-232 serial port to any PC, laptop, thin client or server through a standard USB connection. It removes the need to install an internal serial board. The 43-inch cable provides flexible placement for industrial or networking equipment. No external power supply is required for operation.

Port Speed Up to 230 kbps

The adapter supports configurable COM port assignment and maximum data rates of 230 kbps. This speed ceiling is the key specification for matching the converter to modems, PLCs, console ports or barcode scanners. Wide operating-system support for Windows users simplifies driver installation and deployment across mixed environments.

Suits Users Adding One DB9 Port

Ideal for engineers and technicians who need a reliable USB-to-DB9 link for configuration, monitoring or data logging tasks. Not suited for applications requiring multiple simultaneous serial connections or baud rates beyond 230 kbps. Buyers needing galvanic isolation or ruggedised housings should look at specialised industrial models.

How it compares

Measured against everything we stock in Serial & Protocol Converters, at today’s prices. Recalculated every night.

Price $32.99
Pricier than about 65% of the 121 comparable items (median $19.99).

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Specifications

Product
Brand nameBlack Box
Model nameIC199A-R4
Part numberIC199A-R4
Product typeUSB to RS-232 Converter
Adapter typeUSB to DB9 (RS-232)
Size & build
Cable length43 in (109 cm)
Shipping weight0.23 kg
Package size76 × 76 × 13 mm

Questions about this item

What does the 230 kbps headline speed mean when the converter is connected to a real machine?

The port supports speeds up to 230 kbps, so legacy serial equipment can communicate at that rate when the driver assigns a COM port.

Which USB interface standard is used, and what practical limit does it impose?

The converter plugs into a single USB port and draws all power from it, so no external supply is needed and the link is limited by the USB connection itself.

What physical space and mounting does the 43-inch cable and DB9 end require?

The 43" cable ends in a DB9 male connector, giving enough reach for rear-panel serial ports while the USB-A plug fits any standard port.

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