Converters and Scalers

BirdDog 4K 12G SDI | 4K SDI - 12G SDI, 4Kp60 NDI Encoder/Decoder


4K 12G SDI

4K SDI - 12G SDI, 4Kp60 NDI Encoder/Decoder

Product Code: BD4KSDI

Suggested Retail Price £905+VAT

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Kit List

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BirdDog General Warranty Terms and Conditions

  • 4K NDI Family
  • Encode & Decode up to 4Kp60
  • 12G & HDMI 2.0 connections
  • Built-in cross converter
  • SFP+ port for 10GbE connectivity
  • Active loop outs
  • Three models to choose from:
    • 4K HDMI
      1x HDMI 2.0 Input
      1x HDMI 2.0 Output
      1x 12G Output
    • 4K 12G SDI
      1x HDMI 2.0 Output
      1x 12G SDI Output
      1x 12G SDI Output
    • 4K QUAD
      1x HDMI 2.0 Output
      4x 12G SDI Input/Output

Next Level NDI® Tools

Following on from the award winning HD NDI® products, the 4K Family has been engineered from the ground up for real-world users. Built around BirdDog’s custom NDI® silicon chip and housed in an aircraft grade aluminium case, features include 12G SDI and HDMI 2.0 inputs and outputs, built-in cross converter, SFP+ port for 10GbE connectivity, active loop outs, audio intercom system, NDI® tally system, PoE, and compatibility with BirdDog’s Comms Pro and Central Pro apps.

Encode & Decode up to 4Kp60

With support for all resolutions up to 4Kp60, including all HD resolutions, Encoding and Decoding 4K Full NDI® has never been easier.

12G & HDMI 2.0 connections

All SDI connectors on the 4K line are 12G SDI, including all four SDI connectors on 4K Quad. All the HDMI connectors are 2.0 for maximum compatibility with your sources and destinations.

SFP+ for 10GbE & long range

Industry standard SFP+ connection allows for short, medium, and long range connections over fiber and supports Ethernet protocols from 1GbE to 10GbE.

* Feature coming soon with free firmware update.

NDI Tally that just works

A full Tally system is built right into the 4K Family and it requires zero configuration. Includes a built-in large Tally light for your on-air talent to easily see which camera is live, plus user selectable Tally borders on loop out.

BirdDog 4K Family Specs

Cross Converter

All 4K products include a built in cross converter and of the 12G SDI inputs can be looped out the HDMI 2.0 port and any of the HDMI 2.0 inputs can be looped out the 12G SDI.

PTZ Control

With the optional USB to Ethernet dongle you can control any PTZ camera that supports NDI®, NDI|HX, or Visca over IP.

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.

With BirdDog’s tools you can select the bit rate to suit your bandwidth and requirements. In both HD you can slide between 80-180Mbps and in 4K you can select the data rate to be anywhere between 60 and 360Mbps.

Free Comms Lite. Upgrade to Comms Pro

4K Family include free Audio Intercom software, Comms Lite. Comms Lite supports four BirdDog devices and one Director. For more information on Comms Lite and how to get your free copy click here.

Need a more powerful Audio Intercom solution? Comms Pro gives you all the amazing features of Comms Lite plus allows you create you up to five groups, adds additional push to talk buttons for the director, ability to change groups on the fly, plus more. Comms Pro is just $495 and you can read more about it here.

Distribute NDI® content everywhere. Just add Central

BirdDog Central is a software platform set to redefine the way we think about driving content to TV screens. By teaming up Central 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, Mini or 4K Family to decode NDI® back to SDI or HDMI. For more information on Central click here.

  BirdDog 4K HDMI
BirdDog 4K 12G SDI
4K 12G-SDI
BirdDog 4K QUAD


UHD 3840x2160 23.98, 25.00, 29.97, 30.00, 50.00, 59.94, 60.00
HD 1920x1080p 23.98, 25.00, 29.97, 30.00, 50.00, 59.94, 60.00
HD 1920x1080i 50.00i, 59.94i
HD 1280x720p 50.00p, 59.94p, 60.00p


HDMI 2.0 Input Yes - -
HDMI 2.0 Output Yes Yes Yes
12G SDI Input - Yes -
12G SDI Output Yes Yes -
12G SDI Selectable Input/Output - - 4


HDMI 2Ch, 48kHz - -
SDI - 2Ch, 48kHz 2Ch, 48kHz
3.5mm AUDIO Microphone/line input


HDMI 2Ch, 48kHz
SDI 2Ch, 48kHz
3.5mm AUDIO Stereo Headphone/line output


NDI (Full bandwidth i-frame compression) Yes Yes Yes


Integrated 4-line OLED Status Display Yes Yes Yes
Integrated Multiviewer* - - HDMI OUT


Onboard Bi-color Tally indicator Yes Yes Yes
Selectable Tally indicator on video loop outputs Yes Yes Yes


Ethernet RJ45 1000baseT w/integrated PoE (Power over Ethernet) Yes Yes Yes
Open SFP+ Cage (10gb SFP+ Adapters sold separately)* Yes Yes Yes
Embedded Web configuration Panel Yes Yes Yes


Size 135x85x25mm
Weight 260g 260g 320g


DC Input DC 12v / 16w
PoE (Power over Ethernet) PoE+ 802.3at

EXTERNAL INTERFACE SUPPORT (Requires Optional Cables)*

USB to RJ45 for additional network in device support Yes Yes Yes
USB to RJ45 for VISCA over IP PTZ control Yes Yes Yes
USB to Serial PTZ control (RS232) Yes Yes Yes
USB ISO recording Yes Yes Yes

*Feature coming soon with free firmware update.

Download the free BirdDog RESTful API and program your own automation for all BirdDog hardware endpoints, including cameras.

BirdDog 4K HDMI

4K HDMI - HDMI2.0, 4Kp60 NDI Encoder/Decoder

BirdDog 4K QUAD

4K QUAD - Four channel 12G SDI to 4Kp60 NDI Encoder/Decoder

BirdDog 5 Year Extended Warranty
5 Year Extended Warranty

5 Year Extended Warranty for 4K 12G SDI

BirdDog 4 Year Extended Warranty
4 Year Extended Warranty

4 Year Extended Warranty for 4K 12G SDI

BirdDog Rackmount

Rackmount for 2x 4K Encoders/Decoders in 1RU

BirdDog Camera Mount
Camera Mount

Camera Mount for 4K Family

BirdDog PTZ Cable
PTZ Cable

4K PTZ Control Cable

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?

BirdDog 4K SDI Version 5.5.273

New Features
  • NDI 5 BirdUI.
  • Fleet Manager support.
  • RUDP support on 1 Gigabit per second (Gbps) connections.
  • Simultaneous video loopout via the SDI and HDMI outputs.
Bug Fixes
  • Decoded interlaced sources no longer stutter on playback.
  • The splashscreen no longer displays intermittently during encoding.
  • Vmix no longer incorrectly reports dropped frames.
Known Limitations
  • Some 12G sources may see flickering on hardware loopout.
  • When decoding interlaced video formats, it may be required to adjust the field order (A/V tab) in the converter BirdUI.

Download the latest Firmware and Software

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