4K60 UHD Wireless HDMI Extender Kit with Multi-Receiver Support (Up to 4 Receivers)
and engineering support
Overview
The BG-Air4Kast-MKX is a 4K@60Hz UHD wireless HDMI KVM extender designed to deliver ultra-stable, low-latency video and audio transmission up to 164ft (50m). With support for keyboard, mouse, and touchscreen control, it enables seamless remote operation of PCs and laptops, making it the perfect solution for conference rooms, classrooms, digital signage, and home entertainment. Equipped with channel-switchable technology, HDMI loop-out on the transmitter, and multiple receiver support, the BG-Air4Kast-MKX ensures maximum flexibility for both professional and personal applications.
Features In Depth
The BG-Air4Kast-MKX combines ultra-HD video quality with advanced wireless control capabilities. Supporting resolutions up to 4K@60Hz, it ensures crystal-clear visuals with virtually no lag, ideal for gaming, streaming, and live presentations.
With HDMI loop-out, users can monitor content locally at the transmitter side while wirelessly extending the same signal to one or multiple receivers. The integrated KVM functionality supports real-time keyboard, mouse, and touchscreen operations over long distances, creating a smooth and responsive remote control experience.
For maximum reliability, the system offers channel-switchable transmission to minimize interference, ensuring uninterrupted connectivity even in environments with multiple wireless devices. Its compact design, plug-and-play setup, and wide compatibility make it a powerful tool for professional AV applications, education, and business scenarios.
Features
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![mdi_signal-distance-variant]()
4K@60Hz Wireless TransmissionStable HDMI 2.0 signal extension up to 164ft (50m) -
![KVM]()
KVM SupportRemote control with keyboard, mouse, and touchscreen functionality -
![HDMI Loop Out]()
HDMI Loop-OutLocal monitoring at the transmitter side without signal interruption -
![AIRPLAY AND MIRACAST SUPPORT]()
Channel SwitchableAvoids interference and maintains a stable connection -
![Plug-and-Play Setup]()
Plug-and-PlayNo drivers or software required, quick and simple installation -
![Wireless]()
Multi-Receiver SupportConnect one transmitter to multiple receivers for versatile applications
- Supports resolutions up to 4K@60Hz, HDR compatible
- Transmission distance: up to 164ft (50m) line-of-sight
- Ultra-low latency for real-time control and presentations
- Supports IR remote control pass-through
- Compact, portable design suitable for mobile setups
- Wide compatibility with PCs, laptops, game consoles, projectors, and displays
- I/O Ports: HDMI IN, HDMI OUT (Loop), USB-A (Keyboard/Mouse), Power DC 5V
The BG-Air4Kast-MKX HDMI wireless extender offers numerous benefits for home installations
Wireless Convenience
Enjoy seamless video transmission without cables, reducing clutter and offering convenience in home setups. Additionally, wireless connections are a bonus for households with children and pets!
4K Content Enjoyment
Support for 4K content at 60Hz ensures high-resolution viewing without compromising quality. This is perfect for watching 4K content with the family or playing video games in 4K at a smooth 60Hz refresh rate for low-latency live action.
Flexible Setup
With a 50-meter wireless range, users can freely arrange their home entertainment systems without cable length limitations, suitable for various setups like TVs, projectors, and gaming consoles.
Wireless Convenience
Streamline presentations and meetings by eliminating the need for cables, ensuring a tidy and professional workspace.
High-Resolution Content
Support for 4K content transmission at 60Hz guarantees crisp visuals during presentations, enhancing the quality of communication with clients or colleagues.
Versatile Setup
With a wireless range of up to 50 meters, adapt your conference room or office layout without being restricted by cable lengths, accommodating various display setups and meeting configurations.
Wireless Flexibility
Streamline outdoor setups by eliminating the need for lengthy cables, allowing for easy and quick installation of video displays without the hassle of cable management. The 5G connectivity further enhances this wireless transmission, providing a stronger connection for outdoor events.
High-Quality Viewing
With support for 4K content transmission at 60Hz, deliver stunning visuals to outdoor screens or projectors, enhancing the audience's viewing experience during events like outdoor movie nights, concerts, or festivals.
Extended Range
With a wireless transmission range of up to 50 meters, set up screens or projectors at various distances from the video source, providing flexibility in event layout and accommodating large outdoor venues.
Seamless Integration
Eliminate classroom cable clutter, creating a neat and organized learning environment that promotes focus and student engagement.
Enhanced Learning Experience
Transmit multimedia content from teachers' devices to large screens or projectors, providing students with clear and high-quality visuals that improve comprehension and retention of educational material.
Flexible Setup
With a wireless range of up to 50 meters, educators can arrange their classroom layout without being constrained by cable lengths, allowing for dynamic and versatile teaching setups that cater to different learning activities and group sizes.
The BG-AIR4KAST-MKX is Industry Compliant and Quality Tested
Tech Specifications
| HDMI Performance and Interface |
HDMI version | HDMI 2.0 |
| HDCP version | HDCP 1.4 / HDCP 2.2 | |
| Maximum transfer rate | 18Gbps | |
| Resolution supported | 4096x2160@24/30/50/60Hz, 3840x2160@24/30/50/60Hz, 1080P@50/60Hz, 720P@50/60Hz, 1920x1200 |
|
| Input and output TMDS signal | 0.7~1.2Vp-p (TMDS) | |
| Input and output DDC signal | 5Vp-p (TTL) | |
| Transmission | Wi-Fi Frequency bands | 5.18~5.24 GHz |
| Transmission distance |
One-to-one < 50m; One-to-two < 30m; One-to-three < 20m; One-to-four < 15m |
|
| Latency | 4K@60Hz: 120-180ms 1080P@60Hz: 70-120ms For reference only, delays may vary depending on the resolution, transmission distance, and connection capacity |
|
| Connection types | One-to-one One-to-two One-to-three One-to-four |
|
| SSID pairing | Supported | |
| Protection Level | ESD protection | 1a Contact discharge level 3 1b Air discharge level 3 Standard: IEC61000-4-2 Lightning protection, Surge protection |
| IR Performance | Infrared frequency | 20~60kHz |
| Receiving range | ≤ 5m | |
| Operating Environment |
Working temperature | -4~140°F / -20~60°C |
| Storage temperature | -22~158°F / -30~70°C | |
| Humidity (no condensation) | 0~90% RH | |
| Power Supply | Voltage/Current | DC 5V/2A |
| Power consumption | TX ≤ 5W, RX ≤ 4W | |
| Physical Properties | Dimension (W x L x H) | TX: 4.5 x 4.9 x 0.81in [115 x 125 x 20.6mm] RX: 4.5 x 4.9 x 0.81in [115 x 125 x 20.6mm] |
| Color | Black | |
| Material | Iron | |
| Net weight | TX: 0.77 lbs [349g]; RX: 0.72 lbs [326g] |
Resources
PACKAGE CONTENTS
- 1x BG-Air4Kast-MKX TX
- 1x BG-Air4Kast-MKX RX (depending on package option)
- 2x 5V2A Power Adapters
- 1x IR Receiver Extension Cable
- 1x IR Blaster Extension Cable
- 4x Antenna
- 4x Mounting Ears
- 12x Screws
- 1x User Manual
Interfaces
Transmitter (TX)
- Power Indicator: Indicator lights up when power is applied.
- WiFi Indicator:
a) Slow flash: waiting for connection
b) Steady on: connection succeeded
c) Quick flash: SSID Pairing mode. - Signal Indicator:
a) Light off: no HDMI signal
b) Steady on: FIDMI signal is transmitting
c) Quick flash: restore factory settings. - KVM Indicator:
a) Light flashing: The KVM data is transmitting
b) Steady on: The computer and the USB port are connected. - USB-A Port: Connect to the computer with USB cable.
- Channel Switch Button:
a) Press to switch channels
b) Press and hold 5s for SSID pairing
c) Press and hold 10s for restore factory settings. - Antenna Connectors: Connect with antennas.
- Micro USB Port: Used for firmware upgrade.
- HDMI Input: Connect with HDMI source device with HDMI cable.
- HDMI Output: Connect with local HDMI display device with HDMI cable.
- IR Out: Connect with IR blaster extension cable.
- Power Input: Connect with DC 5V/2A power adapter.
Receiver (RX)
- Antenna Connectors: Connect with antennas.
- Micro USB Port: Used for firmware upgrade.
- HDMI Output: Connect with HDMI display device with HDMI cable.
- IR In: Connect with IR receiver extension cable.
- Power Input: Connect with DC 5V/2A power adapter.
- Power Indicator: Indicator lights up when power is applied.
- WiFi Indicator:
a) Slow flash: waiting for connection
b) Steady on: connection succeeded
c) Quick flash: SSID Pairing mode. - Signal Indicator:
a) Light off: no HDMI signal
b) Steady on: HDMI signal is transmitting
c) Quick flash: restore factory settings. - KVM Indicator:
a) Light flashing: The KVM data is transmitting
b) Steady on: The mouse and the keyboard are connected. - USB-A Ports: Connect the mouse and the keyboard.
- Channel Switch Button:
a) After connecting with TX, press to switch channels
b) Press and hold 5s for SSID pairing
c) Press and hold 10s for restore factory settings.
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