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DH931

The DH901 H265 4K 30 IP to HDMI CVBS VGA Decoder is a versatile decoding solution designed to convert IP-based video streams into visible signals for a wide range of display devices. It targets scenarios such as retail digital signage, classroom audio-visual (AV) systems, and small-to-medium-sized surveillance control rooms. This decoder excels at transforming compressed 4K content—encoded in H.265/HEVC or H.264/AVC—into HDMI, CVBS, and VGA outputs simultaneously. Its plug-and-play design significantly simplifies deployment, requiring minimal setup time even for users with limited technical expertise. Robust decoding algorithms ensure that ultra-high-definition details are preserved without image artifacts or transmission lag. What sets the DH901 apart is its ability to support both modern high-resolution displays and legacy analog monitors. This makes it an ideal choice for businesses undergoing gradual AV system upgrades, as it eliminates the need to replace existing hardware prematurely.
Advantage Dimension | Key Benefit |
Multi-Output Versatility | Delivers simultaneous HDMI, CVBS, and VGA outputs, supporting mixed display environments with different interface requirements. It eliminates the need for additional converters, reducing system complexity. |
4K Decoding Precision | Maintains 4K 30fps video fidelity through H.265 decoding, delivering sharp and clear images. This is particularly critical for scenarios like medical imaging previews and high-end retail signage, where image detail matters. |
User-Friendly Operation | Auto-detects incoming IP streams and configures output settings automatically. This reduces setup time for non-technical users, enabling quick deployment in fast-paced environments like retail stores or classrooms. |
Cost-Effective Upgrade | Eliminates the need to replace legacy CVBS/VGA displays, extending the lifespan of existing hardware while adopting advanced IP video technology. This lowers the total cost of ownership for businesses. |
Parameters
| Name | 4K IP to HDMI VGA Video Decoder | 4K IP to HDMI CVBS VGA Video Decoder |
| Model | ZY-DH921 | ZY-DH931 |
| Video | ||
| Input Interface | 1X RJ45, 1X Audio | 1X RJ45 |
| Output Interface | 1X HDMI, 1X VGA, 1X Audio | 1X HDMI, 1X VGA, 1X CVBS, 1X Audio |
| Output Resolution | 3840*2160@30hz, 1080P60,50,30,25; 1080I60,1080I30 720P60,50; 576P50,480P60, 1280*1024P60,1280*800P60,1027*768P60, 800*600P60 and so on.Please contact us for other resolutions. | |
| Decoding | H.265/H.264 | |
| Output | 1 channel 4K decoding, 4 channels 1080P decoding, 9 channels 720P decoding | |
| Audio | ||
| Decoding format | AAC MP3 | |
| Stereo | Adjustable sound volume | |
| System | ||
| OLED | IP address | |
| RJ45 | 1000M internet access | |
| Protocol | HTTP, HTTPS,RTSP, SRT, UDP/RTP,SRT… | HTTP, HTTPS,RTSP, RTMP, SRT, UDP/RTP,SRT… |
| Management | Web Opreation, remote upgrade | |
| Upgrade | Software upgrading through the internet | |
| General | ||
| Dimension | 6.4*4.4*1.3in(163*111*32mm) | |
| Weight | 0.35kg | |
| Temperature | 0~45℃ (work),-20~80℃ (storage) | |
| Power Supply | 12V/DC 1A | |
| Power Dissipation | <5W | |
Diagram
Apply to network program production, SRT remote transmission, program production monitoring, audio/video engineering.

[Diagram of 4K Video Decoder]

[Embedded RTMP server]

[Protocol Conversion]