Blackmagic Web Presenter 4K - 4K Streaming Encoder

Blackmagic Web Presenter 4K - 4K Streaming Encoder


The Blackmagic Web Presenter 4K is a professional streaming encoder for live streaming to your own server or to platforms such as YouTube, Facebook, Twitter and more. It performs RTMP streaming with H.264 encoding or SRT with H.264 or HVEC encoding, and resolutions up to 2160p60. It has a 1GB Ethernet port, and allows simultaneous connection, via USB-C, using 4G or 5G mobile phones, so that if one connection fails, it automatically continues to transmit data over the other. A second USB-C port allows the unit to be detected as if it were a webcam, a useful application for Zoom, Teams or similar hybrid events. There is a 12-G SDI input port, and output ports for HDMI and 3-GSDI monitoring with audio meters and graphical displays. This device has redundant power connectors.


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649,00 € Con IVA
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Avacab Oficial Reseller


The Blackmagic Web Presenter is a professional H.264 Streaming device with up to 12G-SDI input, allowing live broadcasts on your own server or over all the most popular platforms, (YouTube, Facebook, Twitter) via Ethernet network. It includes USB ports that allow it to be detected as a webcam at any computer where one can stream via various streaming softwares or videoconference applications (Skype, Zoom, etc). Alternatively, it can connect to the network through a 4G or 5G smartphone. This equipment also has an output that allows monitoring of images, audio volume and even technical data of the signal through various graphs.

High-quality Streaming on YouTube, Facebook and more

The Blackmagic Web Presenter 4K streaming encoder is compatible with the most popular streaming platforms and is designed for proffesiona live broadcasting, without drops. To do this, simply connect it to the Internet. Setup is simple, as the utility program allows you to select the platform and update the streaming key. This encoder works on Mac and Windows computers by connecting the device via a USB port or Ethernet network. It is even possible to modify the XML file to change specific settings or add new platforms.

Easy Streaming

The Blackmagic Web Presenter 4K encoder is a standalone solution that includes a powerful encoder, software that supports multiple streaming platforms, and connections for different types of networks. This avoids the need to purchase expensive equipment or use complicated applications. Simply connect any SDI source to the unit, such as a mixer or video camera, and then access the Internet via the integrated Ethernet port. Cell phones can also be used for this purpose. The device has been configured to be compatible with the most popular platforms, so that only the transmission key needs to be entered to start streaming live. In addition, the USB output provides the opportunity to connect the unit to a computer and detect it as a webcam, so that other programs can be used to broadcast over the Internet.

Connection to 4G or 5G phones

When transmitting from a location where wired or WiFi Internet does not reach, or if Ethernet network backup is required, an Apple or Android cell phone can be used to connect to the Internet. For this purpose, the device includes USB ports on the front and back, and is also compatible with 4G and 5G models. When the phone is connected via USB, Web Presenter 4K will automatically detect it and use it to access the Internet. It is also possible to choose which of the connections takes priority. In this way, the device offers an ideal solution for broadcasting from remote sites.

Built-in technical monitoring

Blackmagic Web Presenter 4K includes an output that provides the ability to view images, audio level indicators, with accurate ballistics, and graphs showing streaming data rate and cache usage, as well as a summary of settings and technical information related to the SDI signal. In addition, this output supports SDI and HDMI monitors with HD 1080 resolution, providing the opportunity to use SDI routers to monitor multiple units or connect HDMI TVs.

Blackmagic Management Software

The device management program allows multiple units to be controlled, updated and their settings to be changed. Simply connect a computer to the front USB port or use an Ethernet network to change settings remotely, which is essential when the units are located far away. The familiar menus and controls make it easy to set up the device during live events and start broadcasting immediately. The front panel display also provides access to various settings, and it is possible to add services for ATEM Streaming Bridge converters. The Web Presenter 4K management software is included free of charge and is compatible with Mac and Windows systems.

12G-SDI Technology compatible with HD 720/1080 and UHD

The Blackmagic Web Presenter includes an SDI input up to 12G, which supports all types of SDI signals with a maximum resolution of 2160p60. The loop-through output allows for multiple units to be connected in series for the purpose of streaming across multiple platforms. Moreover, thanks to Teranex technology, the images retain an amazing sharpness. The HD or UHD source is automatically converted into a high-quality 2160p60 UHD stream, which is processed by the H.264 encoder when using the RTMP protocol, or by H.264 or HVEC when choosing the SRT protocol from firmware version 3.3 onwards.

Streaming and power redundancy

Professional equipment has backup features for greater reliability. In this sense, the Web Presenter 4K allows to ensure the continuity of the transmission by accessing the Internet through Ethernet or mobile 4G and 5G networks. In the event of an interruption in one of the connections, the unit will automatically start using the other. It is also possible to use two units to stream simultaneously to the primary and secondary YouTube server. The AC and DC inputs, on the other hand, provide the opportunity to use batteries for an alternative power source. The device includes buttons to access the various menus and a management program for easy control.

ATEM Streaming Bridge support

While Web Presenter supports a wide variety of streaming services, it can also be used to link studios via a private link. The ATEM Streaming Bridge converter can receive RTMP or SRT streams and output SDI or HDMI signals. The combination of the two devices provides the opportunity to connect multiple destinations together.

Desktop and Rack design

The design of the Web Presenter is similar to that of the Teranex Mini line of converters, so it can be placed in both a desktop or a rack. In addition, it includes an AC power supply and a 12V, 4p XLR DC connection, which allows the use of batteries or additional power supplies. Moreover, with a width of only 14 centimeters, it is possible to install three units side by side in a rack tray, which is ideal when it is necessary to transmit across multiple platforms simultaneously, or combine the device with different products, such as ATEM Television Studio HD mixers, to have a complete solution. In addition, the front panel USB port makes it easy to connect to computers for quick local changes.


Data sheet

Video Inputs
Max. Video Resolution
1280x720 - HD
1920x1080 - HD
3840x2160 - UHD
Entradas Audio
Salidas Audio
Data and Control
Codec / Ficheros
H.265 / HEVC
Rack Units
1 RU




SDI Video Inputs

1x SDI-12G

SDI Video Outputs

1x 3G-SDI loop out, 1x 3G-SDI monitor out

SDI Rates

1.5 Gb/s, 3 Gb/s, 6 Gb/s, 12 Gb/s

HDMI Video Outputs

1x monitor out up to 1080p60

Webcam Output

1 x USB-C up to 2160p60


Ethernet supports 10/100/1000 BaseT for live streaming, software control and software updates.


Blackmagic Web Presenter HD




HD Video Input Standards

720p50, 720p59.94, 720p60 
1080p23.98, 1080p24, 1080p25, 1080p29.97, 1080p30, 1080p50, 1080p59.94, 1080p60 
1080PsF23.98, 1080PsF24, 1080PsF25, 1080PsF29.97, 1080PsF30 
1080i50, 1080i59.94, 1080i60 

Ultra HD Video Input Standards

2160p23.98, 2160p24, 2160p25, 2160p29.97, 2160p30, 2160p50, 2160p59.94, 2160p60 

Video Input Color Space

Rec.601, Rec.709, Rec.2020


Auto detects SMPTE level A or B on SDI input.

SDI and HDMI Monitor Out Video Standards

1080p50, 1080p59.94, 1080p60 

Video Streaming Standards

720p25, 720p30, 720p50, 720p60
1080p23.98, 1080p24, 1080p25, 1080p29.97, 1080p30, 1080p50, 1080p59.94, 1080p60
2160p23.98, 2160p24, 2160p25, 2160p29.97, 2160p30, 2160p50, 2160p59.94, 2160p60




Direct Streaming

Blackmagic Web Presenter 4K supports direct live streaming over ethernet using Real Time Messaging Protocol (RTMP) in H.264, and Secure Reliable Transport (SRT) in H.264 and H.265.

Closed Captions

Web Presenter HD supports embedding CEA-608 and CEA-708 closed captions in your live RTMP stream.




Control Panel

Built in control panel with 2.2 inch color display for video preview, audio meters and status.

Device Control

Front panel, USB‑C or ethernet.




Compatible Services and Software

Facebook, Twitch, YouTube, Twitter, Restream.IO, Vimeo, BoxCast, Castr, AfreecaTV, Bilibili, DouYu, Weibo, Zoom, Skype, Microsoft Teams, QuickTime Player, FaceTime, OBS Studio, Open Broadcaster, VLC, Wirecast Play, Wowza Streaming Engine.


Operating Systems


Mac icon

Mac 10.15 Catalina,
Mac 11.1 Big Sur o posterior


Windows Icon

Windows 10 de 64 bits.


Linux icon



Chrome Icon

Chrome OS


Power Requirements


Power Supply

1 x Internal 100 - 240V AC.

12V DC Input

1 x +12V DC 4‑pin XLR.

Power usage

21 W.


Physical Specifications


Blackmagic Web Presenter HD


Environmental Specifications


Operating Temperature

0 °C a 40 °C (32 °F a 104 °F)

Storage Temperature

-20 °C a 45 °C (-4 °F a 113 °F)

Relative Humidity

0 % a 90 % sin condensación



Blackmagic Web Presenter 4K

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