What Is the UHD-EX230-KVM1?
The OREI UHD-EX230-KVM1 is a 4K HDMI extender with KVM that sends video from a computer or laptop to a remote display over a single CAT6/7 cable, while also letting you control that computer from the remote end using a keyboard and mouse. It is a two-piece kit: a Transmitter (TX) that connects to the computer, and a Receiver (RX) that connects to the remote display and to your keyboard and mouse. The two are linked by one CAT6/7 cable, at distances up to 70m (about 230 feet).
It is built for work-from-home professionals and commercial setups where the computer sits in one location and the person works from another, for example a PC in a closet or rack with the monitor, keyboard, and mouse at a desk across the room. KVM means keyboard, video, and mouse, so you both see the computer's screen and control it from the Receiver end.
The UHD-EX230-KVM1 is HDCP 2.2 compliant and HDMI 2.0, supporting video resolutions up to 4K@60Hz with 18Gbps video bandwidth. It supports HDR10 and HLG, and handles uncompressed LPCM along with compressed DTS and Dolby Digital audio. The Receiver includes a 3.5mm analog audio output, and the kit is plug-and-play with no driver installation required.
IMPORTANT — KVM Lets You Control the Computer Remotely
The KVM feature is what sets this extender apart. Beyond sending video to a remote display, it lets you operate the computer at the Transmitter using a keyboard and mouse plugged into the Receiver.
It is designed for customers who want to:
- Keep a computer in one room while working from a monitor, keyboard, and mouse in another room
- Place a PC out of sight, such as in a rack or closet, while operating it from a desk
To control the computer, connect the Transmitter USB-A port to a USB port on the PC or laptop, and connect your keyboard and mouse to the K/M ports on the Receiver. There is also a USB-A port on the Transmitter for connecting devices at that end if needed.
IMPORTANT — USB Is 1.1, for Keyboard and Mouse Only
The KVM USB extension is intended for a keyboard and mouse, not for high-speed USB devices.
The USB extension runs at USB 1.1, with a transmission rate of 12Mbps. This is enough for a keyboard and mouse, including wireless keyboard and mouse receivers, but it is not suitable for high-bandwidth or high-power USB devices. As noted in the manual, you cannot connect a game controller to control a gaming console remotely through this device. A game controller would require a KVM extender with a USB 2.0 port.
IMPORTANT — Both Units Need Their Own Power
Unlike Power over Cable extenders, this kit powers each unit separately.
The kit includes two power adapters, one for the Transmitter and one for the Receiver. Each unit connects to its own 5V power adapter at its DC 5V port. Make sure both ends are powered for the link to work.
IMPORTANT — Audio Output Is at the Receiver
The UHD-EX230-KVM1 provides a separate analog audio output at the Receiver end.
The Receiver includes a 3.5mm L/R stereo output, where you can connect a soundbar, AV receiver, headphones, or similar audio device. This lets you hear audio from the computer at the remote workspace. The kit supports uncompressed LPCM along with compressed DTS and Dolby Digital formats.
Ports and Panel Layout
The UHD-EX230-KVM1 kit includes one Transmitter and one Receiver. The Transmitter connects to your computer, and the Receiver connects to your display, keyboard, and mouse.
Transmitter:
| Port / LED / Button | Location | Function |
| DC 5V | Transmitter | Connect the included power adapter |
| HDMI IN | Transmitter | Connect your computer or media source, such as a PC, laptop, DVD player, or set-top box |
| HDMI OUT | Transmitter | Connect a local display such as a TV or monitor near the source |
| CAT OUT | Transmitter | Connect a CAT6/7 cable. The other end connects to the Receiver |
| USB-A | Transmitter | Connect to a USB port on the PC or laptop so it can be controlled remotely from the Receiver |
| Reset | Transmitter | Press to reset the unit |
| Power and USB LED | Transmitter |
Power LED lights up when the unit is powered on USB LED on: keyboard or mouse connected USB LED off: keyboard or mouse not connected USB LED flashing: keyboard or mouse transmitting data |
Receiver:
| Port / LED / Button | Location | Function |
| DC 5V | Receiver | Connect the included power adapter |
| HDMI OUT | Receiver | Connect a display device such as a TV or monitor |
| L/R | Receiver | Connect a 3.5mm audio device such as a soundbar, AV receiver, or headphones |
| CAT IN | Receiver | Connect a CAT6/7 cable. The other end connects to the Transmitter |
| K/M | Receiver | Connect a keyboard and mouse to control the PC or laptop at the Transmitter end |
| Reset | Receiver | Press to reset the unit |
| Power and K/M LED | Receiver |
Power LED lights up when the unit is powered on K/M LED on: keyboard or mouse connected K/M LED off: keyboard or mouse not connected K/M LED flashing: keyboard or mouse transmitting data |
Step-by-Step Setup
- Place the Transmitter near your computer, and the Receiver at your remote workspace with the display, keyboard, and mouse.
- Connect a CAT6/7 cable to the CAT OUT port on the Transmitter, then run the other end to the CAT IN port on the Receiver.
- Connect your computer's HDMI output to the HDMI IN port on the Transmitter. If you also want a local display at the source, connect it to the HDMI OUT port on the Transmitter.
- Connect the Transmitter USB-A port to a USB port on the PC or laptop so it can be controlled remotely.
- At the Receiver, connect your display to the HDMI OUT port, and connect your keyboard and mouse to the K/M ports.
- If you want audio at the remote end, connect a soundbar, AV receiver, or headphones to the Receiver L/R 3.5mm output.
- Connect the included power adapters to the DC 5V port on both the Transmitter and the Receiver.
- Confirm the Power LED is lit on both units. The USB or K/M LED lights when a keyboard or mouse is connected, and flashes when data is being sent.
- Confirm the computer's screen appears on the remote display, and that the keyboard and mouse control the computer.
Note: If you run into video issues, the Reset button on either unit lets you reset that unit.
Cable Requirement — Important
Use CAT6 or CAT7 cable for the run between the Transmitter and Receiver. The maximum distance is 70m (about 230 feet) at 4K@60Hz.
Use quality HDMI cables for the connections to the computer and to the displays. If you experience no video output, trying different CAT or HDMI cables is a good first step.
What Source Devices Is the UHD-EX230-KVM1 Compatible With?
The Transmitter HDMI IN port connects to a computer or other HDMI source.
It can be used with:
- Desktop PCs and laptops with HDMI output
- DVD and Blu-ray players
- Set-top boxes and streaming devices
For remote control to work, the source should be a PC or laptop, connected to the Transmitter USB-A port so the keyboard and mouse at the Receiver can operate it. It supports resolutions up to 4K@60Hz, along with common HD resolutions, and HDR10 and HLG.
What Displays and Peripherals Is the UHD-EX230-KVM1 Compatible With?
The Receiver HDMI OUT port connects to a standard HDMI display, and the K/M ports connect to USB input devices.
It can be used with:
- 4K TVs and monitors
- 1080p TVs and monitors
- USB keyboards and mice, including wireless keyboard and mouse receivers
Because the USB extension is USB 1.1, the K/M ports are intended for keyboards and mice. Higher-bandwidth USB devices and game controllers are not supported through this kit.
Frequently Asked Questions
Q: What is the OREI UHD-EX230-KVM1 used for?
A: It is used to send 4K video from a computer to a remote display over a single CAT6/7 cable, up to 70m (about 230 feet), while also letting you control that computer with a keyboard and mouse at the remote end. KVM stands for keyboard, video, and mouse.
Q: How far can it extend my computer?
A: It extends media up to 70m (about 230 feet) over a CAT6/7 cable at 4K@60Hz.
Q: How does the remote control work?
A: Connect the Transmitter USB-A port to a USB port on your PC or laptop, then connect your keyboard and mouse to the K/M ports on the Receiver. You can then operate the computer from the Receiver end.
Q: Can I connect a wireless keyboard and mouse?
A: Yes, you can connect a wireless keyboard and mouse. However, you cannot connect a game controller to control a gaming console remotely. To use a game controller, you would need a KVM extender with a USB 2.0 port.
Q: Does it pass audio?
A: Yes. The Receiver has a 3.5mm L/R stereo output where you can connect a soundbar, AV receiver, or headphones. It supports uncompressed LPCM along with compressed DTS and Dolby Digital.
Q: Do I need to power both units?
A: Yes. The kit includes two power adapters, one for the Transmitter and one for the Receiver. Each unit connects to its own 5V adapter at the DC 5V port.
Q: What cable should I use between the units?
A: Use CAT6 or CAT7 cable for the run between the Transmitter and Receiver, up to 70m (about 230 feet) at 4K@60Hz.
Q: Does it support HDR?
A: Yes. The UHD-EX230-KVM1 supports HDR10 and HLG.
Q: I am not getting any video output. What should I check?
A: Try a lower resolution from the source device, try changing the CAT cable or HDMI cables, and check whether the HDMI OUT on the Transmitter is working, which helps identify whether the problem is at the source or in the extension path.
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