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Black USB-to-DB9 extender dongle with Cat5/6 jack, transmitter and receiver pair

CableMAX

CableMAX USB to RS-232 Extender 270ft Cat5/6

SKU CH-CKJ8-HTQBR

Extends RS-232 serial signals up to 270 feet using Cat5/5e/6 cable with a USB-connected transmitter and remote receiver

  • ColorBlack
  • Changer TypeUSB to DB9 (RS-232)
  • Extend RS-232 devices up to 270 ft using standard Cat5/6 cable
  • Full-duplex remote control of any RS-232 protocol device
  • Kit includes transmitter and receiver for flexible placement
  • USB to DB9 interface connects serial gear to modern ports
  • Operates reliably at distances up to 90 meters

USB to RS-232 Extender

The CableMAX extender converts a USB port into a DB9 serial connection and transmits the signal over standard Cat5, Cat5e or Cat6 UTP cable. It reaches up to 270 feet while maintaining full-duplex communication with any RS-232 protocol device. The kit includes a local transmitter and a remote receiver for immediate deployment.

Build Integration

A single Cat5/5e/6 cable carries both data and power between the two units so no extra power supply is needed at the remote end. The transmitter plugs directly into an available USB port on the host computer. This frees the serial device from the usual short-cable length restriction and lets it sit anywhere within the 90 metre range.

Target Users

Ideal for technicians and integrators who must control industrial, laboratory or legacy RS-232 equipment from a distant workstation. Not suited for buyers who need a native USB extension without serial conversion or who require longer reach than 270 feet.

Highlights

  • Extend RS-232 devices up to 270 ft using standard Cat5/6 cable
  • Full-duplex remote control of any RS-232 protocol device
  • Kit includes transmitter and receiver for flexible placement
  • USB to DB9 interface connects serial gear to modern ports
  • Operates reliably at distances up to 90 meters

Specifications

ColorBlack
Changer TypeUSB to DB9 (RS-232)

Questions about this item

What is the maximum extension distance for the RS-232 signal over Cat5/6 cable?

The extender kit supports a maximum RS-232 signal extension of 270 feet (90 meters) using a standard Cat5/5e/6 UTP cable between the transmitter and receiver.

How much heat or noise do the transmitter and receiver generate during all-day operation?

The units are passive adapter modules with no fans or active cooling, so they produce no audible noise and negligible heat during continuous use.

Which cables and ports must I already have to connect this kit?

You need an available USB-A port on the host, a DB9 serial port on the target device, and a standard Cat5/5e/6 UTP patch cable to link the transmitter and receiver.

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