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D300 4K UHD NDI®| HX (2.0) Video Decoder

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D300 4K NDI|HX UHD H.265 video decoder is a professional hardware decoding device that can decode multi-channels network video stream (such as IP-Camera, RTSP/RTMP/RTP unicast or multicast media stream, etc.) without relying on a computer. It supports both SDI and HDMI output with resolution up to 4K, and multi-channels video stream decoding to display wall with screen splitting and dynamic switching.
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Product description


The D300-4K UHD NDI HX Video decoder is a professional hardware decoding device that can decode multiple video streams without relying on a computer It outputs SDI signal and HDMI signal video, supports 4K UHD resolution, and supports multi-channels video stream split screen to the display wall and dynamic switching.


Main features




Powerful decoding function, support 4K NDI HX, H.265 decoding, support 9 channels of video simultaneous decoding output.

● Support NDI HX, H.265, H.264 decoding, support 9 channels 1080p30, or 4 channels 4k HD video simultaneous decoding output.

● HDMI and SDI dual interface output, support HDMI (up to 3840x2160@60Hz) and SDI (up to 1920x1080@60Hz) same or different content output.

● Using kiloview' s image enhancement and fault-tolerant technology, for lowcode-encoded Video, 10% of network packet loss video, etc., clear and distortion-free decoding output.

● Using kiloview' s intelligent delay control technology, the typical network environment is less than 200ms decoding delay.


With video stream dynamic switching function, it supports multi-screen custom split screen display.

● Support 9 channels of video stream dynamic switching output, seamless switching is smooth.

● Support 16 channels of video custom 1/2/4/6/8/9/16 split display.

● Support audio mix output.

● Support Tally display and column indication.


High compatibility, compatible with various types of network video decoding output, suitable for a wide range of video stream dynamic switching functions, support multi-screen custom split screen display.

● The input supports mainstream network video protocols such as RTMP/HLS/TS over UDP/RTSP. Compatible with hundreds of front-end encoding products, streaming media servers, network cameras, etc.

● SRT supported to ensure secure and reliable transmission.

● Support HDMI/SDI embedded audio output and analog audio output.



NDI HX, H.265, H.264  Decoding      





When you need to decode and split the multi-channel4K UHD network video stream, even if you need to switch the multi-channel network stream to the wall, you only need to connect the D300 4K UHD decoder to the network and the large screen interface. Various web videos can be presented in real time on a large screen according to your needs.


Multimedia splicing project                                  Online TV                                                 Online class                                         Meeting





2*100M/1000M RJ-45 adaptive Ethernet port


Video output

Output format

SDI: up to 1080P60Hz; HDMI: up to 4k. Details as below:


1*SD/HD/3G-SDI,support up to 1080P 60Hz;



Media protocol

Split screen display


D300 4K UHD NDI HX Video Decoder

1*HDMI 2.0,support up to 3840x2160@60Hz


SDI :1080P60/59.94/50,1080P30/29.97/25/24/23.98 1080I60/59.94/50  720P60/59.94/50 570I/50


Belden 1694A cable standard:SD SDI ≥ 350m;HD SDI ≥ 180m;3D SDI ≥ 100m

Video decoding

Audio decoding

HDMI: 4K 3840x2160@60/30、1080p60/50、1080p24/25/30、1080i60/50、720p60/50

Compatible with VESA standard format


12V 1A







NDI HX/H.265 /H.264 (Note: NDI|HX means NDI|HX Version 2.0)

1080P 50Hz/60Hz:up to 8 channels simultaneously


1080P 30Hz,1080I 50/60Hz or 720P and below:up to 9 channels simultaneously


Support 1/2/4/6/8/9/16 self-defined screen splitting

4KP30Hz:up to 4 channels simultaneously 



Decoding delay


Power supply


Operating temperature


Decoding ability

SDI transmission distance


Audio output

Product pictures 

SDI/HDMI embedded or analog line-out output

Multi-stream switching            


SDK provided            


4K UHD resolution            


Image scaling/ frame rate conversion         


16 channels video split to the screen            


Ultra low latency decoding            


7*24h working mode            


SRT supported           


       NDI ® is a registered trademark of Newtek.


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