4K HDMI® USB/Audio/RS232/IR CAT5e/Fiber KVM Extender - TAA Compliant

Fiber modules needed for use with the HKM01-4K can be purchased together.

For the 4K60Hz version: HKM01-4K6G

4K30Hz HDMI® KVM Extender over Ethernet/Fiber

HKM01-4K is a 4K30Hz HDMI® KVM extender that uses cost-effective Ethernet or fiber optic cables to transmit HDMI, USB, analog audio, RS232, and IR signals up to 459 feet (140 meters). 

The transmitter features an HDMI® loop-out port for connecting a local display, while the receiver provides four built-in USB 2.0 ports, enabling remote control of your connected HDMI® device.

Designed for real-time applications, the HKM01-4K delivers extremely low latency. Over 459 feet, latency is less than one frame, making it ideal for banks, industrial control systems, and other time-sensitive environments.

Audio Embedding and Extraction

The HKM01-4K supports microphone audio embedding and analog audio extraction. You can route remote audio through a 3.5mm jack to local speakers or send microphone input back to the computer for use in video conferencing applications.

Local HDMI® Output

The transmitter includes a local HDMI® loop-out port, allowing you to connect an additional display without affecting your remote operation—perfect for monitoring from the server room.

KVM and USB Peripheral Support

The receiver is equipped with four USB 2.0 ports, supporting not only keyboards and mice but also a wide range of USB devices such as webcams and flash drives.

Video Guide

The video will show you the full performance and operational instructions of the HKM01-4K6G (the 4K 60Hz version), which are the same as HKM01-4K.

Benefits

• Extend KVM and USB signals safely and securely

• Simple installation—no software required

• Supports a wide variety of USB devices beyond keyboards and mice

Quick Specifications

• Video Resolution: 4K30Hz

• Signal Types: HDMI® / USB

• Transmission Medium: Ethernet cable or Fiber optic cable

• Distance:

  • CAT5e: up to 393 ft (120 m)

  • CAT6: up to 459 ft (140 m)

  • Single-mode fiber optic: up to 37.28 miles (60 km)

FAQs

What cables should I use with this KVM extender?

We recommend using high-quality CAT5e or CAT6 UTP/STP/FTP cables. Poor installation or low-quality cables can cause unstable transmission and signal interference.

Can I connect it through a network switch?

Yes, with the maximum transmission bandwidth up to 850 Mbps. To avoid overloading your LAN and causing network outages, we recommend using a dedicated, separate network if connecting through a switch.

Can I use both Ethernet and fiber optic cables at the same time?

No. You must choose either UTP Ethernet cable or an SFP fiber optic module; they cannot be used simultaneously.

What type of fiber modules are supported?

The extender uses standard SFP fiber optic modules. The transmission distance depends on the specifications of the module and the fiber optic cable used. Optional modules are available for purchase.

Can the receiver’s audio input connect to devices other than microphones?

No. The receiver only supports mono microphone input (Mic In) and does not support stereo line-in audio.

Can the USB ports on the receiver supply power?

Yes. Each USB port can supply up to 500 mA, but the total output across all ports should not exceed 1500 mA.

Does the RS232 port support hardware handshaking?

No. RS232 hardware handshaking is not supported.