4K Wireless HDMI extender

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WHD4021 Wireless Digital AV Sender and Receiver 4K60 KVM 30MW

WHD4021 Wireless Digital AV Sender and Receiver 4K60 KVM 30MW
WHD4021 Wireless Digital AV Sender and Receiver 4K60 KVM 30MW
Wireless HDMI transmitter and Receiver
Model No.:
Low Latency:
16ms Latency, the lowest latency WiFi -based HD solution in the market
High Video Quality:
Up to 4K60 vision lossless
Plug and Play:
No setup, no software installation, no PC, no messy cables
HDMI Loop Out:
HDMI loop out for TX, with zero latency
KVM Function:
Support IR/Mouse/Keyboard extended function
Power Amplifiers:
Built-in independent PA, output power of up to 100mw*2
High Security:
WPA2/WPA-PSK/WPA2-PSK high security standard
Strong enough to penetrate the wall, up to 150ft line of sight

4K60 Seamless Streaming and Gaming

With the zero latency technology, the WHD 4021 lets you simultaneously
stream video in 4K Ultra HD without lag and Visual lossless video quality.

Private Chipset and Protocol with Ultra-low Latency

The private codec used by WHD4021 supported real-time video streaming over
Wi-Fi, which offers as low as 16ms latency, high video quality, efficient bitrate
control, and high reliability under fluctuating conditions of communication
channels, is an ideal solution for 4K high resolution streaming application.

4K60 High Video Quality

With four times resolution of 1080p, clear pictures, rich details, high dynamic range, 4K deliver us fantastically cinematic experience in the big TV.  WHD4021 support 4K HDR visual lossless effect.

Fast Streaming Speed with 5G AC MIMO Technology

Dual-band, dual-antenna 802.11ac Wi-Fi with MIMO technology for faster and lag-free high-quality video streaming with fewer dropped connections than standard 2.4G Wi-Fi.  

Support USB KVM Function

Plug the mouse and keyboard on the receiver to remotely control the video source in another room. The USB data of the mouse/keyboard is sent wireless to TX which in turn outputs the data to the video source connected to it.

Control the Video Device Remotely by Infrared

WHD4001 supports infrared extended function to control of the video device from other places, the infrared support
20-60KHz wide frequency.

Plug and Play

With standard HDMI interface. No configuration, no user intervention, simply plug the wireless sender into video source through HDMI, and plug the receiver into the big TV or projector, the sender and receiver will connect with easy other automatically. Support HDMI loop out for local display

Any Device
Undetectable Latency
Independent PA
IR Back Control
Plug and Play
Anti-interference Protocol
No Software
2* 5db Antenna
HDMI Loop out
High Security
Product Specifications


HDMI Version
HDCP Version
Power Amplifier


Power Supply


Product Weight
Package Included


•     HDMI 1.4b
•     HDCP 1.3
•     20Mbs bandwidth
•     20 dBm
•     2*5 dBi  antenna
•     End to end latency 32ms
•     802.11 b/g/n 2.4G

•     44.1KHz, 48KHz, 16 bit

•     TX less than 10W, RX more than 7.5W

•     Support 150-200 meters coverage (clear line of sight)
•     Support IR/keyboard/mouse extended function
•     AC100 – 240V 50/60Hz, DC 5V/2A
•     1080p/60f/24f, 720P/60f/50f, 576P/50f, 480P/60f, 1080i/60f/50f
•     HDMI out x1, HDMI in x1, Micro USB x 1, IR Jack x1, Power Switcher x 1, DC x1, LED Indicator x3
      HDMI out x 1, USB x 2, IR Jack x1, Power Switcher x 1, DC x1, LED Indicator x 3


•     140* 83* 19mm, Rx: 140* 83 * 19mm
•     TX: 198g, TX: 198g
•     HDMI Cable x 2; IR Emitter Cable x 1; IR Receiver Cable x 1; Manual x 1, Gift box x 1
•     Operating Temperature: 0℃~40℃ (32℉~104℉)
      Storage Temperature: -40℃~70℃ (-40℉~158℉)
      Operating Humidity: 10%~90%
      Storage Humidity: 5%~90%

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