Bluefish444 release Microsoft Windows 6.6.1 driver SDK package for Epoch and KRONOS Range of SDI & SMPTE 2110 Video Cards
27 October, 2025
Bluefish444 6.6.1 driver SDK supporting Epoch and KRONOS range for the industry’s highest quality and lowest latency video SDI/ST2110 IO
North Melbourne, Australia, August 27th, October 2025 – Bluefish444, manufacturer of the professional video industry’s highest-quality uncompressed video interface cards announces the availability of the Microsoft Windows 6.6.1 driver and SDK package for the Epoch and KRONOS range of SDI/ST 2110 video cards.
New features include
- Updated Kronos K8 and Optikos3G range firmware’s (V1.6.12)
- Added support for EX-1 extension board for external audio I/O, RS422 and LTC I/O (Kronos K8/Optikos3G range)
- Added full duplex DMA support for KRONOS K8/Optikos3G range
- Added AutoCapture to DirectShow to improve latency I/O
- Added DirectShow audio filter support for more than 2 audio channels
- Added native 4K support to DirectShow
- Updated Sample apps
BlueToolBox updates for KRONOS range
- Added dynamic I/O switching for all KRONOS firmware
- Added a channel routing & distribution amplifier feature
- Added more SFP+ IP module configuration setup functionality
Compatible OS includes Windows 10 64-bit, Windows 11 64-bit, Server 2022, Server 2025
Bluefish444 hardware, driver and SDK are used in hundreds of industry leading Video applications across workflows including Virtual Production, Acquisition and Archive, Broadcast Graphics, Live Event Production, Post Production, Medical, Military and Corporate applications.
The Bluefish 6.6.1 driver SDK is immediately available and free to download from https://www.bluefish444.com/developers/sdk-registration.html
About Bluefish444
Bluefish444, known as the Professionals’ Choice for over 25 years, is the manufacturer of the professional video industry’s highest quality video I/O interface cards, centralised ingest appliances, live production, archival & streaming software and signal converters. Bluefish products are deployed globally throughout the broadcast, post-production, live event and entertainment, proAV, corporate, military, government, medical and education markets.
KRONOS and Epoch video cards support interfaces for 4K/UHD SDI, HDMI and Video Over IP I/O and are widely integrated by 3rd-party developers and OEMs via the cross-platform Windows and Linux SDK.
Bluefish supply the IngeSTore Server centralised ingest appliance and IngeSTore software for live production, archival and streaming workflows.
Bluefish have integrations with the biggest brands in professional video including Adobe, Avid, Drastic Technologies, Nuke, Unity, Unreal Engine, CasparCG, Vizrt, Brainstorm, ClassX, RT Software, WTVision and many more, with Bluefish video cards providing the major component of turnkey solutions for production, 2D/3D graphics, display & presentation, multimedia, QC & compliance and live event workflows.
Established in 1998, Bluefish444 is a division and brand name of Bluefish Technologies Pty Ltd, and based in North Melbourne, Australia, and its products are distributed via a global OEM, dealer and systems integrator network. Visit bluefish444.com for more information.
All trademarks used herein, whether recognised or not, are the properties of their respective companies.


