The best SDI-to-IP converter depends on whether you need to send an SDI signal over a network or decode an IP stream back to SDI. For SDI-to-NDI production, Magewell Pro Convert SDI Plus and SDI TX are purpose-built options; URayCoder supports multiple streaming protocols and simultaneous streams. ZowieBox can encode or decode NDI|HX, while Magewell Pro Convert NDI to SDI is a decoder, not an SDI-to-IP encoder.
| Product | Best suited for | Direction or role |
|---|---|---|
| Magewell Pro Convert SDI Plus | NDI production with local monitoring | SDI to NDI |
| Magewell Pro Convert SDI TX | SDI sources with embedded audio | SDI to NDI |
| URayCoder SDI to IP Encoder | Multi-protocol streaming | SDI to IP streams |
| Zowietek ZowieBox | Flexible NDI|HX encoding or decoding | Switchable encoder/decoder |
| Magewell Pro Convert NDI to SDI | Connecting network video to SDI equipment | NDI/IP to SDI |
Magewell Pro Convert SDI Plus
Best for: Production teams that need to put an SDI source onto an NDI network while keeping a local SDI monitor connected. This unit converts 3G-SDI input into an NDI stream and provides SDI loop-through for local monitoring.
Its listed processing tools include de-interlacing, aspect-ratio conversion, cropping, scaling, and color-format conversion. The stated SDI input support reaches 2048×1080 at 60 fps. Those features make it a strong fit when source formats need adjustment before distribution across an IP-based production workflow.
Limitation: This model outputs NDI; it is not the choice for decoding an NDI stream into an SDI output.
Magewell Pro Convert SDI TX
Best for: Users who want to encode an SD, HD, or 3G-SDI source as NDI High Bandwidth and need embedded audio carried with the video. The product supports resolutions up to 2048×1080 at 60 fps on input and output and encodes up to 16 channels of embedded SDI audio.
Built-in de-interlacing, scaling, aspect-ratio conversion, and color-format conversion can help prepare a signal for the receiving workflow. Choose this model when audio synchronization and format processing are key requirements for an SDI-to-NDI link.
Limitation: Its listed output is NDI High Bandwidth, so verify that the receiving software and network workflow support that format.
URayCoder SDI to IP Encoder
Best for: Broadcasters and streamers who need protocol options beyond an NDI-only workflow. The listed protocols include HTTP, RTSP, RTMP and RTMPS, SRT, HLS, UDP, RTP, multicast, and other formats. The encoder can output up to four video streams simultaneously, with different protocols assigned to different streams.
That multi-stream function is useful when one SDI source must reach multiple streaming destinations or servers. The product listing also describes support for live-streaming services and multiple video stream types.
Limitation: Confirm that the required input standard, codec, and destination protocol match your setup; the supplied feature list does not specify every possible resolution or encoding configuration.
Zowietek ZowieBox 3G SDI NDI
Best for: Setups that need a configurable SDI-to-NDI|HX encoder or NDI|HX-to-SDI decoder in one device. It supports NDI|HX, NDI|HX2, and NDI|HX3, and can also decode RTMP, RTSP, and SRT streams to NDI and SDI. The listed decoding resolution reaches 1080p at 60 fps.
Its UVC-to-SDI feature can turn a UVC camera source into SDI output, according to the product details. This makes it a flexible option for mixed video-source workflows.
Limitation: It does not support full-bandwidth NDI, and it cannot encode and decode at the same time. USB capture-card functionality is also not supported.
Magewell Pro Convert NDI to SDI
Best for: Users who need the reverse of an SDI-to-IP converter: decoding network video for an SDI device, monitor, or production chain. It converts full-bandwidth NDI and NDI|HX streams to SD, HD, or 3G-SDI output, with formats up to 1920×1080p60 as well as listed 1080i and 720p formats.
The decoder also accepts NDI|HX2, NDI|HX3, H.264, H.265, SRT, RTSP, RTMP, UDP/RTP, and MPEG-TS sources. It is useful when IP video needs to re-enter a baseband SDI workflow.
Limitation: This is an IP-to-SDI decoder, not an encoder for sending an SDI input onto an IP network.
Buying Guide: How to Choose an SDI to IP Converter
Do you need to encode SDI or decode an IP stream?
Start by checking signal direction. An encoder takes an SDI source and creates a network stream, such as NDI or an internet-streaming protocol. A decoder takes a network stream and creates SDI output. These functions are not interchangeable. If you need both directions, check whether a device supports both and whether it can use them simultaneously.
Which network format does your workflow require?
Choose based on the receiving system. Magewell SDI Plus and SDI TX are NDI encoders, while ZowieBox supports NDI|HX variants but not full-bandwidth NDI. URayCoder lists several streaming protocols, including SRT, RTMP, and HLS. Confirm protocol and codec support at both ends before purchasing.
What resolution and audio requirements matter?
Match the converter’s stated input and output formats to the cameras, switchers, monitors, and streaming destinations in your setup. For audio over SDI, the SDI TX listing specifies up to 16 embedded audio channels. For local monitoring, SDI Plus includes loop-through. Do not assume a feature is supported unless the product specifications explicitly list it.
Will the converter fit your signal path?
Consider whether the system needs an SDI loop-through, format scaling, de-interlacing, or multiple simultaneous streams. Also check whether your network can carry the selected stream format and whether the receiving application can decode it. In mixed workflows, write down each connection and its direction before selecting a converter.
Frequently Asked Questions
What does an SDI-to-IP converter do?
It encodes video arriving over SDI into a network-deliverable format, such as NDI or a streaming protocol. The exact formats depend on the model.
Is an NDI-to-SDI converter the same thing?
No. An NDI-to-SDI converter decodes a network stream and outputs SDI. It performs the reverse signal direction.
Can one converter send video to multiple streaming destinations?
URayCoder lists support for up to four simultaneous video streams, with different protocols available for each stream.
Does ZowieBox support full-bandwidth NDI?
No. Its listed support includes NDI|HX, NDI|HX2, and NDI|HX3, but not full-bandwidth NDI.
What should I verify before buying?
Check signal direction, SDI format and resolution, required network protocol, audio needs, and compatibility with the receiving equipment or software.