Kiloview D350 4K Full NDI to SDI/HDMI Decoder/Multiviewer

D350 - 4K Multi-Functional Decoder
D350 is a versatile all-in-one 4K decoder for professional applications. It decodes up to 12 simultaneous 1080p60 streams in H.264/265, supporting numerous IP protocols like NDI High Bandwidth, NDI HX, SRT, and RTMP with both 3G-SDI and HDMI outputs, as well as real-time preview on the web UI. Beyond decoding, the D350 functions as a hardware-based multiviewer and a professional video processor, featuring customizable layouts, dynamic switching, and graphic overlays. It also integrates audio monitoring and PTZ control, making it a comprehensive solution for high-end video workflows.

Advanced Video Decoding
D350 delivers exceptional decoding capabilities for IP video streams, supporting mainstream encoding formats such as ​HEVC (H.265)​, ​AVC (H.264)​, and ​SpeedHQ (NDI High Bandwidth)​.This robust decoding performance not only ensures efficient and stable video transmission but also provides stunning ultra-high-definition visual quality, ensuring every detail is rendered with clarity.

Versatile Audio Decoding
D350 offers flexible output options via embedded SDI/HDMI or 3.5mm Line Out. It’s compatible with AAC, G.711, Opus, and LPCM audio formats. With powerful multi-channel audio mixing and gain adjustment, users can easily switch between sources, mix multiple audio channels, and fine-tune output gain levels—ensuring accurate, high-quality audio for any production environment.

Comprehensive Streaming Protocol Support - Designed to Meet All Your Workflow Needs
The D350 is fully compatible with a wide range of streaming protocols, such as NDI High Bandwidth, NDI HX2/HX3, SRT, RTMP, RTMPS, HLS, TS over UDP, RTP, and RTSP, ensuring seamless integration into any video production environment. This extensive protocol support provides maximum flexibility for live streaming, broadcasting, and IP-based video workflows.

Fully Customizable Display Layouts
The D350 offers complete flexibility in output screen configurations. Users can choose from single-screen, split-screen, or picture-in-picture modes and customize layouts with anywhere from 1 to 16 video windows with fully adjustable parameters—including position, size, and dimensions. Custom layouts can be saved as templates, allowing you to recall and reuse specific multi-screen configurations for future sessions easily.

Personalized Overlay Templates for Unique Visuals
With the newly integrated overlay editor, the D350 lets you create rich, personalized output screens. Design custom overlays using images, text, colours, and graphical elements such as logos, borders, or combined image-text layers. These templates can be applied directly to your video output, delivering a more dynamic, branded, and engaging visual experience.

Multiple Interfaces for Flexible High-Quality Video Outputs
The D350 features multiple output interfaces, including 3G-SDI and dual HDMI 2.0 ports, enabling synchronized decoding with the option to display identical or different content across outputs.

• HDMI Outputs support resolutions up to 4Kp60
• SDI Output supports resolutions up to 1080p60
• All output parameters—resolution, scan type (progressive or interlaced), and frame rate—are fully adjustable. The D350 also supports specific broadcast-standard frame rates, such as 59.94 and 29.97 fps via SDI, ensuring compatibility with professional workflows.

Real-Time Preview + Flexible Output Switching
The D350 supports up to 16 real-time screen preview based on the web UI, enabling monitoring of both local and remote IP video streams, making it work as a hardware multiviewer. It also allows flexible switching of preview video output, meeting various needs in multi-signal monitoring and display scenarios.​

Simplified UI for Easy Operation
The brand-new UI interface is simple and intuitive. The perfect combination of the main screen and sidebar preview layout allows for easy previewing of multiple full-format video streams. With a drag and drop, users can seamlessly switch between real-time preview and corresponding output. All functions are integrated on the web page, making them clear and easy to access. Additionally, the interface supports VU meter monitoring and PTZ control, making monitoring even more efficient.

LCD Screen for Realtime Status Monitoring
D350 features a 0.9-inch LCD screen for enhanced user convenience, enabling users to easily check the IP and monitor decoding status in real time.​

RTMP Server Supported
With RTMP Server, D350 can simplify the video decoding workflow by directly accessing a video encoder and outputting video streams through RTMP without any relay platform.

Audio & Intercom Capabilities - Seamless Communication Integration
The D350 is equipped with dual USB ports, enabling connection to USB headsets for multi-party voice communication. By utilizing the Kiloview Intercom Server (KIS), the D350 easily integrates with a wide range of devices, including Kiloview encoders or decoders, PC, smartphones, iPads/tablets etc, facilitating easy and flexible communication across your setup.

Dual Ethernet Ports With 1 PoE
D350 is equipped with dual Gigabit Ethernet ports with one of them is PoE powered, ensuring uninterrupted network connectivity. The dual network port design provides primary-backup redundancy. If the primary port fails, the backup port ensures service continuity.

Centralized Management with KiloLink Server
D350 seamlessly integrates with KiloLink Server, optimizing media transmission across all Kiloview products using any available network links. It enables efficient management, monitoring, and control of all devices throughout the process.

Standard API Provided for Easy Integration
With optimized API, D350 offers a more convenient interface for video stream functionality development. Utilizing the included demo program, developers can quickly integrate and call features, streamlining the development process and improving efficiency.

Applications
It supports simultaneous decoding and multi-screen output of network streams, seamless network stream pulling for display or control room switching, point-to-point SRT video transmission (on the receiver side), live program monitoring (on the receiver side), wall-mounted monitoring, and integration of AV and conference systems.

• Video Resolution
  • HDMI Output:
  • 3840*2160p 60/50/30/25/24fps
  • 1920*1080p 60/50/30/25/24fps
  • 1920*1080i 60/50fps
  • 1280*720p 60/50/30/25/24fps
  • SDI Output:
  • 1920*1080p 60/59.94/50/30/29.97/25/24/23.98fps
  • 1920*1080i 60/59.94/50fps
  • 1280*720p 60/59.94/50/30/29.97/25/24/23.98fps
• Video Port
  • 1× 3G-SDI
  • 2× HDMI
• Video Decoding: SpeedHQ(NDI), H.264(AVC), H.265(HEVC)
• Protocol Support: NDI HB / NDI HX2 / NDI HX3 / SRT / RTMP /RTMPS / HLS / TS over UDP / RTP / RTSP
• Multi-View Layouts: Custom 1/2/3/4/5/6/7/8/9/16-screen layouts
• Interlaced Video Support: support Interlaced & Progressive IP stream decoding
• Audio Decoding: AAC / MPEG-4 / MPEG-2 / G.711 / Opus / LPCM / NDI
• Audio Channels
  • 4-channel SDI embedded audio
  • 2-channel HDMI embedded audio
  • 1× 3.5mm Line-out (2-channel)
• Network Port: 2× 1000Mbps Ethernet ports (1× PoE-powered)
• Physical Controls: 0.96" OLED (monochrome) + touch-sensitive keys
• OSD/Graphics Overlay: Custom background images + text/graphics overlay
• Management: Web-based control or centralized management via KiloLink Server Pro
• Voice Intercom: Supports USB headsets and communicate via Kiloview Intercom System (KIS)
• PTZ Control: Reverse PTZ control support
• USB Port
  • 1*USB 2.0 Type-A
  • 1*USB 3.0 Type-C
• Power Supply: DC 12V/1A, PoE
• Power Consumption: 7W(MAX)
• Weight: 340g
• Dimensions: 162mm×104mm×25mm
• Working Temperature: -20℃~60℃

• D350 decoder / 1 SET 
• DC12V/1A power adaptor / 1PC
• Quick start guide /1PC
• Certificate/Warranty card /1PC
• Warranty: Limited 1-Year Manufacturer Warranty