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The UGREEN 90909A, also known as CM586, is a plug-and-play wireless HDMI extender kit designed for seamless, long-distance transmission of audio and video. It is ideal for presentations, home theaters, and educational settings.
Key features True 4K video: The kit supports 4K ultra-high-definition video with 4K@30Hz resolution, delivering sharp and vibrant images. It's also backward-compatible with 1080P@60Hz. Long-range wireless transmission: Utilizing a powerful 5G chip and a dual-antenna design, the kit offers a maximum transmission distance of up to 50 meters (165 feet) for 1080P@60Hz and 30 meters for 4K@30Hz in a clear line of sight. Low latency: With a latency as low as 0.1 seconds, the extender provides a smooth experience for streaming video and audio. However, it is not recommended for fast-paced gaming due to potential latency sensitivity. Dual-interface display: The receiver unit is equipped with both HDMI and VGA ports, allowing you to display video on two screens simultaneously or separately. External audio support: A built-in 3.5mm audio port on the receiver lets you connect external audio equipment, supporting audio output simultaneously with the HDMI port. Plug-and-play setup: The transmitter and receiver come pre-paired from the factory, meaning there's no need for drivers, Wi-Fi, or Bluetooth. You can start screen-casting with a single click. Broad compatibility: The transmitter (TX) is compatible with devices like laptops, PCs, cameras, DSLRs, and TV boxes. The receiver (RX) works with TVs, monitors, and projectors. Power requirement: Both the transmitter and receiver must be connected to an external 5V, 1A power source via the included USB-C cables to function properly. | ![]() |
![]() | Components included in the boxWireless HDMI Transmitter x 1 Wireless HDMI Receiver x 1 HDMI Cable x 2 USB-C Cable x 2 User Manual x 1 |
| Model No | UGREEN Wireless HDMI Transmitter and Receiver 4K |
| Part No | 90909A / CM586 |
| Type | Wireless HDMI Transmitter and Receiver Kit |
| Video Resolution | Supports up to 4K at 30Hz, and is backward compatible with 1080P at 60Hz. |
| Wireless Technology | 5G wireless technology for stable transmission. |
| Maximum Range | Up to 50 meters (165 feet) for 1080P at 60Hz with no obstructions. |
| Up to 30 meters for 4K at 30Hz with no obstructions. | |
| Latency | Low latency, as little as 0.1 seconds, though not recommended for fast-paced console gaming. |
| Transmitter Ports (TX) | 1x HDMI Input, 1x USB-C for power. |
| Receiver Ports (RX) | 1x HDMI Output, 1x VGA Output, 1x 3.5mm Audio Output, 1x USB-C for power. |
| Dual Interface Display | Allows simultaneous or separate video output through both the HDMI and VGA ports on the receiver. |
| Audio | Can output audio through both the HDMI and 3.5mm ports. |
| Power | Both the transmitter and receiver require an external 5V, 1A power source via the USB-C port. |
| Installation | Plug-and-play functionality, as the devices are pre-paired at the factory. |
| Included in Box | 1 Wireless HDMI Transmitter, 1 Wireless HDMI Receiver, 2 HDMI Cables, 2 USB-C Cables, and a User Manual. |
| Warranty | 1 Year Warranty on Mechanical Fault( As per Manufacturer Policy ) |