Converters and Scalers

BirdDog Flex 4K OUT | 4K Full NDI Decoder with Tally, Comms, PTZ Control, and PoE


Flex 4K OUT

4K Full NDI Decoder with Tally, Comms, PTZ Control, and PoE

Product Code: BDFLEXDEC

Suggested Retail Price £352+VAT

View Product Variations Where to buy Videos

Stock status: In Stock; available from resellers

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Kit List

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BirdDog General Warranty Terms and Conditions

  • Flex 4K Family
  • Halo Tally system built in
  • Adaptive bit rate
  • Free software includes: Central Lite, Dashboard & Comms Lite
  • 100% Recyclable packaging
  • Three models to choose from:
    • FLEX 4K IN
      4K Full NDI Encoder with Tally, Comms, PTZ Control, PoE+, and DC Power Output.
      4K Full NDI Encoder with Tally, Comms, PTZ Control, PoE+, DC Power Output, and L-Series Battery Mount.
    • FLEX 4K OUT
      4K Full NDI Decoder with Tally, Comms, PTZ Control, and PoE.

The Smallest 4K NDI on the Planet

4K NDI® in an incredibly small package. Flex delivers everything you have come to expect from BirdDog’s one cable solution including Tally, Audio Intercom, Video, Audio, PTZ Control, and Power all down a single Ethernet cable. With 3 models to choose from in the Flex Family is a Flex to perfect for your workflow needs.

Small is the new Big

With a footprint only slightly larger than a credit card, the Flex 4K NDI Encoders and Decoders are the smallest on the planet. Because sometimes the biggest things are also the smallest.

Cool touch thermals

Sometimes the biggest features are also the least obvious. Flex 4K NDI has unmatched thermal design and whisper quiet fans to keep Flex cool and fresh even on the hottest days and in direct sunlight.

One cable to rule them all. Now with added power

BirdDog’s revolutionary Studio NDI gave the world NDI, Power, Video, Audio, Tally, and Audio Intercom all done a single Ethernet cable. Flex 4K IN and Flex 4K BACKPACK take it one step even further and provides an additional 15w extra power allowing you to use the DC output to power your monitor, recorder, or even your camera.

Halo Tally. It just works

Flex’s revolutionary Halo Tally system is built right into the Flex Family and it requires zero configuration when connected with any NDI enabled software based production system. The Halo Tally is designed to be seen by the camera operators as well as the on air talent.

Flex 4K BACKPACK. Upgrade your monitor

Flex BACKPACK is the ultimate upgrade for your camera top monitor recorder. Featuring an NP style battery connection, and 15w power output, it allows you to encode NDI, power your monitor, and record all at the same time. With great power comes great responsibility.

Adaptive bit rate. Slide your way to glory

Full NDI® is a variable bit rate codec. In normal circumstances BirdDog recommends allowing around 140Mbps in HD, or 6 streams per 1GbE cable with some headroom. In 4K it is recommended to allow around 300Mbps or 3 streams with some headroom to allow for any unforeseen spikes.

The ultimate PTZ sidekick

If you aren’t lucky enough to own a BirdDog PTZ camera with full NDI natively then Flex can become the ultimate sidekick. Plug in HDMI to encode beautiful and Full NDI, and attach a PTZ control cable to have PTZ passthrough control. Perfect upgrade for your PTZ camera while waiting for Santa to bring you a BirdDog.

BirdDog Flex 4K Family - 100% Recyclable packaging

100% Recyclable packaging

Every element of Flex packaging is 100% recyclable and soy based ink is used to further reduce the BirdDog foot print. There are no printed manuals inside the box, instead you can download the most up to date version anytime from our website.

Free Software Tools

Central Lite

Team up Central Lite with any NDI® source, including all BirdDog hardware capable of creating NDI® sources, you can now drive your NDI® streams to any BirdDog Studio NDI or Mini to decode NDI® back to SDI or HDMI.


Open up a web browser (Chrome preferred) on the same network as Flex and login into Dashboard for total control of all settings. Change resolutions and frame rates, unlock new features with the latest firmware, and more.

Comms Lite

Comms Lite is your free Audio Intercom solution. With support for four BirdDog devices, plus a director, Comms Lite is a great way to start using Audio Intercom in your live productions.

Feature Flex 4K IN Flex 4K BACKPACK Flex 4K OUT
UHD 2160p 25.00, 29.97, 30.00
HD 1080p 25.00, 29.97, 30.00, 50.00, 59.94, 60.00
HD 1080i 50.00, 59.94
HD 720p 50.00, 59.94, 60.00
HDMI 2.0 Input Yes - Yes
HDMI 2.0 Output - Yes -
HDMI 2Ch, 48kHz - 2Ch, 48kHz
3.5mm AUDIO Microphone/line input
HDMI - 2Ch, 48kHz -
3.5mm AUDIO Stereo Headphone/line output
NDI (Full bandwidth i-frame compression) Yes Yes Yes
Integrated Tricolour Halo Tally Yes Yes Yes
2.5mm 4-pole RS232 (VISCA) Yes Yes Yes
Ethernet RJ45 1000baseT
w/integrated PoE (Power over Ethernet)
Yes Yes Yes
Embedded Web configuration Panel Yes Yes Yes
Size 107×63×31mm 107×63×42.5mm
Weight 140g 150g
PoE (Power over Ethernet) PoE+ 802.3at
DC Input DC 12v (30w max)
DC Output DC 12v (15w max) - DC 12v (15w max)
NP style Battery Output - - Yes
BirdDog Flex 4K IN
Flex 4K IN

4K Full NDI Encoder with Tally, Comms, PTZ Control, PoE+, and DC Power Output

BirdDog Flex 4K BACKPACK

4K Full NDI Encoder with Tally, Comms, PTZ Control, PoE+, DC Power Output, and L-Series Battery Mount

BirdDog 5 Year Extended Warranty
5 Year Extended Warranty

5 Year Extended Warranty for Flex 4K OUT

BirdDog 4 Year Extended Warranty
4 Year Extended Warranty

4 Year Extended Warranty for Flex 4K OUT

BirdDog Camera Mount
Camera Mount

Camera Mount for Flex 4K Family

The Power of NDI: BirdDog Converters and the Need for 10G AV Networks in Professional Video Production

BirdDog NDI converters are devices that enable you to convert video and audio signals from HDMI or SDI sources to NDI streams, or vice versa, over IP networks. NDI stands for Network Device Interface, and it is a technology created by Vizrt (formerly NewTek) that allows low-latency, high-bandwidth video transmission over standard Ethernet cables. SDI on the other hand, has generally become the industry standard and stands for Serial Digital Interface, and it is a technology that allows uncompressed video transmission over coaxial or fibre optic cables.

Bridging the NDI gap to ATEM: Blackmagic in the IP World

The video production market is transitioning towards IP. Whether it will ever get there 100% or will find a balance between HDMI, SDI and Ethernet remains to be seen, but we are without doubt entering a phase where crews and installers are weighing up the benefits of IP technology for each project. Why IP?

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