
Overview
Mini & Low Power: The HDMI decoder is 75*32*22/32g and USB-powered with power consumption 2.0W only. With type-A male HDMI connector, you can plug it to the HDMI port of display directly without additional HDMI cable, making the installation neat & easy.
Portable 4K SRT Decoder: Decode up to 2160p@60Hz with H.265 & H.264 SRT. The decoder offers end-to-end IP video solution by pairing with DDMALL SRT encoder or third-party SRT encoders to provide secure, reliable, and high-quality low latency video transmission.
Pro IP Video Decoding: With built-in H.265 & H.264 SRT, ONVIF, RTSP, UDP/TCP protocols, it decodes 2160p@60Hz video at high bitrate, and HDMI outputs in up to 2160p@60Hz. Support EDID and support video resolution up-scaling and down-scaling.
Camera Decoder: The IP decoder decodes IP streams from different IP cameras, NVRs, and other network streams to HDMI signal for output in 4K definition with RTSP & ONVIF protocol, providing the most portable & reliable network stream decoding.
80ms Low Latency: Video transmission latency is as less as 80ms when pairing with DDMALL video encoder HEV-2K/HEM-4K and enabling the low latency protocol for video transmission in LAN.

Mini Pro IP Stream Video Decoder in 4K
The HDD-20 is mini(75*32*22mm), lightweight(32g), and USB-powered(2.0W). It comes with plastic housing and type-A male HDMI connector. You can plug it to the HDMI port of the display, and power it with USB connection to the display or power bank. With built-in H.265 & H.264 SRT, RTSP, ONVIF, UDP/TCP protocols, it enables 2160p@60Hz video decoding and output in low latency, providing the most portable hardware IP decoding solution for IP cameras, NVRs, IP encoders, and other industrial systems.



Dedicated 80ms Low Latency
With built-in DDMALL dedicated low latency protocol, you can enable low latency protocol for video transmission when pairing with DDMALL encoder HEV-2K/HEM-4K, the transmission latency can be as less as 80ms.

Cloud Control Enhances Using Experience
The HDD-20 decoder is with built-in DDMALL Cloud protocol. Register a Cloud account and enable the Cloud control feature through web UI for free. Then you can control the decoder through Cloud, which is convenient for those who need massively deploy and manage the decoders. With DDMALL Cloud, you can configure network/video/audio/system/streaming parameters, monitor decoder online status, preview image, and preset scenes etc. Moreover, we provide Cloud protocol to help business customers customize their own Cloud system on their servers. Contact us to learn more.


Specifications
| Power Supply | 5V/1 A (USB cable powered ) | Power Consumption | 2.0W |
| Work Temperature | 10~65℃ (14~149℉) | Storage Temperature | -20~85℃ (-4~185℉) |
| Work Humidity | 10%- 90%RH (Non-condensing) | Product Weight | 35g/0.077lbs |
| Product Dimension | 75x32x22mm/2.95x1.26x0.87in | MTBF(mean time between failures) | 30,000h |
| Video Input Standard | HDMI 2.0 | Video Codec | H.265/HEVC and H.264/AVC |
| Supported Protocols | SRT, RTSP, ONVIF, UDP, TCP, | Supported Output Resolution |
3840*2160p@60/50/30/25/24Hz, 1920*1080p@60/50/30/25/24Hz, 1920*1080i@60/50Hz, 1280*720p@60/50Hz |
| Supported Stream Input Resolution |
3840*2160@60/30Hz,1920*1080p@60/30Hz, 1280*720p@60/30Hz, |
Audio Input Standard |
HDMI embedded audio input, 3.5mm analog |
| Audio Encoding Format |
G.711u, AAC |
Compression Profile | BaseLine, Main, High |
| Control Method |
Web UI / Cloud |