DDMALL HDD-20 4K HDMI over IP Video Decoder, H.265 H.264 SRT Decoder for Decoding IP Camera or IP streaming

$549.99 $649.90 available: In Stock
Quick Overview:

【Easy Setup without Cable-clutters】Ultra-mini size(75x32x22mm/2.95x1.26x0.87in) and ultra-lightweight(35g/0.077lbs). USB-powered. The video decoder accepts power from the USB port of displays without power adapter; Type-A male design of HDMI interface making it easy to plug to the HDMI port of display without HDMI cable; these unrivaled features ensure easy installation of the streaming media decoding system with cable-free.

【Portable 4K SRT Decoder】Decode up to 4K@60Hz with SRT protocol; the HDMI encoder offers end-to-end IP video solution by pairing with DDMALL SRT encoder, providing secure, reliable, and high-quality low latency video transmission; compatible with third-party SRT encoders.

【True 4K Video Decoder】Decode up to 4K@60Hz at high bitrate with HEVC/AVC, and HDMI outputs up to 4K@60Hz. Auto-match a best HDMI output resolution for display regarding the specific parameters of display terminals; support video resolution up-scaling and down-scaling.

【Camera Decoder】The IP decoder decodes IP streams from various brand IP cameras or NVRs to HDMI signal; support protocols like ONVIF, RTSP, UDP, TCP. 

【Transmission with Less than 80ms Latency】Video transmission with less than 80ms delay when pairing with DDMALL video encoder with ddmall low latency transmission technology. It is unrivaled amazing for the streaming applications when low latency tops all consideration


DDMALL Technology

DDMALL Technology is the proprietary brand of Atel Technologies Co., Ltd. As a company comprised of R&D and manufacture, we have been dedicated to hardware video codec products for over 20years. Foot on video over IP industry, we have developed a series of hardware HDMI over Ethernet transmitters, extenders, live video encoders, decoders, A/V processors, matrix switchers, HDMI cables etc. To meet the ever-growing segmented market demands and keep our customers one-step ahead in the market, we will stay innovative and sharpen our technology to provide more versatile, reliable, stable but less cost and carbon footage solutions for video transmission, distribution and live streaming.

SRT video decoder

HDD-20 is DDMALL most compact and powerful HDMI video deocder yet, features in ultra-mini and uldtra-lightweight form factor. It accepts power by USB connection to the USB port of displays. HEVC H.265 and AVC H.264 compression support; this HEVC decoder decodes network streams and video encoders for broadcasting in 2160p at up to 60fps in ultra low latency, making it perfect to decode IP cameras and NVRs from differents brands. It supports video resolution up-scaling and down-scaling. The video decoder can auto-match the best HDMI output resolution for the display terminal by identifying the parameters of the display terminal. Degrade 4K video to 2K video for passing through in case you have the needs. SRT, Onvif, RTSP, UDP, TCP support; when it works as a SRT decoder, it secures your 4K video transmission reliably in low latency; leveraging DDMALL dedicated low latency technology, the hardware ip streaming decoder offers an option for video transmission in less than 80ms latency when pairing with DDMALL encoder HEV-2K; captivate your audiences with the video reviewing in near-time delay and ultimate 4K image quality. Integrate the hdmi decoder into your systems to decode IP camera, network stream, DDMALL or third-party video encoders and more, it will bring your unmatched decoding AV experience. 

HDMI IP streaming decoder


netowrk stream decoder


Eye-Catching HDMI Video Decoder 

Benefiting from the compact design, HDD-20 IP streaming decoder is ultra-mini and ultra-lightweight; easy to carry everywhere you wish to. You can easily integrate the IP decoder into your decoding systems, ideal for those streaming applications which have high requirements for the installation space.


camera decoder


USB-Powered & Energy Efficient

The HDMI decoder has ultra-low power consumption of only 3W, which can easily take power from most HDMI port directly. when the power voltage of some signal sources is too low to support normal working of the video decoder, you can power it by USB connection to the signal source or power bank. The streaming decoder works longer time while cost less power than others, making it outstanding efficient in energy saving and leaving less carbon footage on Earth.



ip decoder


Reliable Quality, Low Latency

the HEVC H.265 AVC H.264 video decoder adopts DDMALL technology with professional grade performance. the video transmission will be less than 80ms when pairing with DDMALL video encoder. Users can achieve near-real time video transmission and experience high quality video, absolutely wonderful for those applications which have high requirements on low latency. 



HDMI video decoder for decoing ip stream


ip camera decoder


Portable True 4K Video Decoder 

Support IP stream inputs up to 4K@60HZ and decoding outputs up to 4K@60Hz. experience true 4K high quality video for your streaming. it is a professional live stream video decoder fro decoding IP streams, network streams or IP camera and more. 





SRT decoder


SRT Decoder for More

Support SRT, RTSP, ONVIF, UDP, TCP. A true 4K SRT decoder allows 4K@60 input and output and delivers secure, reliable and high quality video in low latency. It is the most compact hardware video decoder in the market, providng professional video decoding services. 





Experience True 4K Clarity with your Families

video decoder for decoding ip camera


 Power Supply  5V/1 A (USB cable powered )
Power Consumption 3W
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


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


What's In the Package

*1× HDD-20 HDMI Decoder

*1×HDMI Male to Female Cable

*1×Micro USB Power Cable

*1 x Quick Installation Manual

*1 x Warranty Card