AVMATRIX DE20-4K HDMI/NDI Encoder & Decoder
4K60 Loopout, PTZ Control, Multi-Platform Streaming
article number: 12749 | manufacturer number: DE20-4K | EAN/UPC: 6971118003600
The AVMATRIX DE20-4K is a professional 4K HDMI encoder and decoder that combines both functions in a compact unit, flexibly connecting modern HDMI, USB, and IP workflows.
The device supports protocols such as NDI|HX3, SRT, RTMP(S) and RTSP and enables bidirectional conversion between HDMI signals and IP streams. This makes the DE20-4K ideal for live productions, streaming, broadcast, PTZ camera systems, and hybrid production environments.
The DE20-4K supports 4K60 HDMI inputs with HDR loopout and enables latency-free monitoring directly at the local output.
Encoding and decoding are supported up to 4K30. The high network bandwidth of up to 50 Mbps ensures high-quality and stable image transmission.
HDMI signals can be converted directly into IP streams, or IP sources can be output again as HDMI. In addition, the device supports USB cameras and USB video sources for modern streaming and production applications.
This makes the DE20-4K an excellent interface between traditional HDMI setups and modern network productions.
The system supports direct streaming to platforms such as YouTube, Facebook, Twitch, Vimeo or Zoom – even without an additional computer.
Streams can be sent simultaneously to two RTMP or SRT destinations. In addition, the integrated recording function enables direct recording of video up to 4K30 to USB storage or SD card.
As a USB capture device, the DE20-4K operates driver-free and is compatible with software such as OBS Studio, vMix, VLC or Zoom.
The encoder/decoder supports comprehensive PTZ camera control via VISCA, IP and NDI, making it ideal for modern remote production environments.
Additional features such as integrated tally light, audio inputs and outputs, USB audio integration, and power supply via PoE or 12V DC provide great flexibility in studio and live operation.
Real product can look different to picture
techn. Specs▲
| Video | Encoder: HDMI In × 1, HDMI Loop × 1 |
|---|---|
| Decoder: HDMI Out × 1 | |
| Audio | 3.5mm Audio In & Out ×1 |
| Network | LAN/POE × 1 |
| USB | USB Type-A × 1 |
| Recording | SD Card, USB Flash Drive, NAS |
| HDMI In & Loop | Encoder: Up to 2160p60 |
| HDMI Out | Decoder: Up to 2160p30 |
| Encoder Format | 2160p30/ 25/ 24 |
| 1080p60/ 50/ 30/ 25/ 24, 1080i60/ 50 | |
| 720p60/ 50 | |
| Decoder Format | 2160p30/ 25/ 24 |
| 1080p60/ 50/ 30/ 25/ 24, 1080i60/ 50 | |
| 720p60/ 50 | |
| Streaming Protocols | Encoder: RTSP/ RTMP/ RTMPS/ SRT/ NDI* |
| Decoder: RTSP/ RTMP/ RTMPS/ SRT/ NDI* | |
| * NDI function is optional, supports NDI|HX/ HX2/ HX3 | |
| Bitrate | Up to 50Mbps |
| REC SD Card Format | FAT32/ exFAT |
| REC USB Flash Drive Format | FAT32/ exFAT |
| PTZ Control Protocol | Pelco D/P, VISCA |
| USB Host | USB Recording/ USB Audio Input |
| USB Video to IP Stream & HDMI Out, USB PTZ Camera Control | |
| USB Device | UVC Capture |
| Power Supply | DC In: 6-20V, PoE: PoE+(802.3at) |
| DC Out: 6-20V (Max 1A) , USB Out: 5V 1A | |
| Consumption: ≤8W | |
| Dimensions (L×W×H) | 104×125.5×24.5mm |
| Weight | Net: 501g, Gross: 820g |
| Temperature | Operating: -20-60℃, Storage: -30℃~70℃ |
| Warranty | 3 Years |
Questions & Answers▲
What video protocols does the AVMATRIX DE20-4K support?
The DE20-4K supports SRT, RTMP, RTMPS, RTSP, and NDI|HX3, allowing flexible integration into a wide range of IP-based video workflows and streaming environments.
Can the device encode and decode at the same time?
Yes, the DE20-4K combines encoder and decoder functionality in a single compact unit, enabling bidirectional conversion between HDMI and IP streams within one device.
What is the maximum supported video resolution and frame rate?
The HDMI input and loopout support up to 4K at 60 frames per second. Encoding and decoding functions operate at resolutions up to 4K at 30 frames per second.
Does the loopout introduce any delay to the signal?
No. The HDMI loopout operates with zero latency, meaning the local monitor receives a real-time feed that is unaffected by the encoding or decoding process.
Is a computer required for live streaming?
No PC is required. The device handles encoding, streaming, and recording independently, making it suitable for standalone operation in broadcast and live production environments.
Which streaming platforms are supported?
The DE20-4K supports live streaming to platforms including YouTube, Facebook, Twitch, Vimeo, and Zoom, and can simultaneously stream to two RTMP or SRT destinations at once.
Can video be recorded directly on the device?
Yes. The integrated recording function allows direct recording of video at up to 4K30 to a USB drive or SD card without the need for an external recorder.
Does the device support USB cameras as an input source?
Yes. USB cameras are supported alongside HDMI sources, allowing webcams and USB-connected devices to be integrated into HDMI output and streaming workflows.
What is the maximum bitrate for video transmission?
The DE20-4K supports high-bandwidth transmission at up to 50 Mbps, ensuring high image quality for professional video production and live streaming applications.
Is PTZ camera control supported?
Yes. The device includes PTZ control functionality, enabling remote pan, tilt, and zoom operation of compatible cameras directly through the unit.
Does the device support Tally signaling?
Yes. Tally support is included, allowing compatible cameras and systems to receive on-air status signals during live production.
Can the DE20-4K be powered over Ethernet?
Yes. The device supports Power over Ethernet (PoE), which simplifies installation by allowing power to be supplied through the network cable without a separate power adapter.
Is HDR content supported through the HDMI loopout?
Yes. The HDMI loopout supports HDR, ensuring that high dynamic range content is passed through to a local monitor without degradation.
product safety (GPSR)▲