Blackmagic Design Decklink Duo 2
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- This item is covered for 3 years
What you need to know
What you need to know
- 4 independent bidirectional 3G-SDI connections for capture and playback up to 1080p60.
- Each BNC can be configured as input or output for low-latency multichannel workflows.
- Wide compatibility with major NLEs, live solutions, and broadcast servers.
- Software up/down/cross conversions, HDR management, and color precision up to 4:4:4 12-bit.
Manufacturer Information
Blackmagic Design
https://www.blackmagicdesign.com
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A Quadruple I/O at the Heart of the DeckLink Range
True SDI "Swiss Army knife," the DeckLink Duo 2 combines the versatility of four cards into a single PCIe slot. It inherits Blackmagic's Desktop Video ecosystem, ensuring stability and integration in control rooms, playout servers, video walls, and multichannel ingest systems.
Who It's For and Which Workflows
Designed for broadcasters, broadcast service providers, live events, e-sports, post-production, and digital signage, it simultaneously handles multi-camera capture, program returns, recording, and playback in parallel. Its independent 3G-SDI I/Os facilitate isolated stream orchestration, backups, and playout without hardware re-routing.
Streams, Conversions, and End-to-End Integration
Per-Channel I/O Flexibility
Each 3G-SDI port can be dynamically configured as input or output. This allows you to create asymmetric setups (for example, 3 inputs + 1 monitoring output) while maintaining minimal latency via the PCIe Gen 2 x4 bus.
Image Quality and HDR
The DeckLink Duo 2 supports YUV 4:2:2 10-bit sampling in all modes and RGB 4:4:4 up to 12-bit at 1080p30, with Rec.601/709/2020 color spaces, HDR metadata (HLG, PQ), and real-time software conversions.
Software Integration
Compatible with macOS, Windows, and Linux, it comes with Media Express, LiveKey, and Desktop Video utilities for quick deployment in heterogeneous environments and smooth operation with major editing, live, and broadcast software.
Technical specifications
| Type of optional card | Transmission | Audio/Video inputs | Ref SDI |
| Audio/Video outputs | 4x SDI | Weight | 160 g |
| SDI Connections | 4 x bidirectional SD/HD 12-bit ports, independently configurable as input or output. | Processing | Real-time hardware color space conversion. |
| Sync Input | Tri-Sync or Black Burst. | HD to SD Down-conversion on output | letterbox, 16:9 anamorphic, center cut 4:3. |
| Computer Interface | PCI Express Gen 2, 4 lanes, compatible with PCIe x4, x8, and x16 slots. | SD to HD Up-conversion on input | 16:9 zoom or anamorphic. |
| SDI Audio | 16 embedded channels input and 16 embedded channels output (SD and HD). | Cross-conversion | HD720 to HD1080 and vice versa during playback. |
| Audio Sampling | 48 kHz, 24-bit TV standard compliant. | Real-time effects | DaVinci Resolve, Final Cut Pro X, Adobe Premiere Pro CC Mercury Playback Engine, Avid Media Composer. |
| SD Video Standards | 525i59.94 NTSC, 625i50 PAL. | Supported Codecs | AVC-Intra, AVCHD, Canon XF MPEG2, Digital SLR, DV-NTSC, DV-PAL, DVCPRO50, DVCPROHD, DPX, HDV, HEVC, XDCAM EX, XDCAM HD, XDCAM HD422, DNxHR, DNxHD, Apple ProRes 4444, Apple ProRes 422 HQ, Apple ProRes 422, Apple ProRes LT, Apple ProRes 422 Proxy, uncompressed 4:2:2 8-bit, 4:2:2 10-bit, 4:4:4 10-bit. |
| HD Video Standards | 720p50/59.94/60; 1080p23.98/24/25/29.97/30/50/59.94/60; 1080PsF23.98/24/25/29.97/30; 1080i50/59.94/60. | Included Software | Media Express, Disk Speed Test, LiveKey, Blackmagic Desktop Video Utility, Mac OS and Windows drivers; Media Express, Blackmagic Desktop Video Utility, and drivers for Linux. |
| SDI Compliance | SMPTE 259M, 292M, 296M, 372M, 425M, ITU-R BT.656, ITU-R BT.601. | Compatible Applications | DaVinci Resolve, Fusion, Final Cut Pro X, Adobe Premiere Pro CC, Avid Media Composer, Adobe After Effects CC, Avid Pro Tools, Steinberg Cubase, Steinberg Nuendo, Adobe Photoshop CC. |
| SDI Metadata | RP 188/SMPTE 12M-2 and closed captions. | Other Applications | The Foundry Nuke, Grass Valley Edius, Sony Catalyst Production Suite, Tools On Air Just: Play & Live & In, Softron MovieRecorder & MReplay, Adobe Flash Media Live Encoder, Telestream Wirecast, Livestream Producer, Resolume Arena, Magix Vegas Pro & Movie Edit Pro Premium, Corel VideoStudio Pro, CyberLink PowerDirector, Vidblaster X & Studio & Broadcast, Uniplay One & CG, CasparCG Server, Magicsoft CG, Xsplit Broadcaster, Imagine Communications Velocity & InfoCaster, DevTek Easy Media Suite, Metus Ingest, Boinx Software MimoLive, Cinegy Capture Pro, vMix Live, Renewed Vision ProPresenter, Ventuz Director, Class X Liveboard & Coral CG, Glookast Capturer, Open Broadcaster Software Studio, Nautilus NEMO3D, Burst Video WebClip2Go & REC Marker, Zoom. |
| SDI Color Precision | RGB 4:4:4 8/10/12-bit up to 1080p30; YUV 4:2:2 8/10-bit in all modes. | Internal Update | Firmware integrated into the driver, loaded at startup or via software update. |
| Video Sampling | 4:2:2, 4:4:4. | Physical Installation | PCIe 4 lanes Gen 2, compatible with Mac OS, Windows, Linux; Mac Pro required for PCIe slots (see manufacturer's system requirements). |
| Color Space | REC 601, REC 709, REC 2020. | Operating Systems | Mac 15.0 Sequoia, Mac 26.0 Tahoe or later; Windows 10 64-bit, Windows 11; Linux. |
| HDR | Static metadata packets, HLG and PQ transfer characteristics. | ||
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Questions frequently asked
Does the Blackmagic Design DeckLink Duo 2 support 4 simultaneous SDI inputs?
Its 4 SDI ports are independently configurable as inputs or outputs. A 4-input configuration is therefore possible, as well as 3 inputs with 1 monitoring output.
Which HD video formats are supported?
The card supports 720p up to 60 fps and 1080p up to 60 fps. It also supports 1080i50/59.94/60 and 1080PsF from 23.98 to 30 fps formats.
Is it possible to synchronize the card with a video control room?
A sync input accepts Tri-Sync or Black Burst signals, allowing integration into a synchronized video setup.
How many audio channels are carried over SDI?
Each SDI stream can carry 16 embedded audio channels in input and 16 channels in output. The audio sampling rate is fixed at 48 kHz / 24 bits, as per TV standards.
Which streaming and editing software are compatible?
Compatibility is confirmed with DaVinci Resolve, Adobe Premiere Pro CC, Final Cut Pro X, Avid Media Composer, and Pro Tools. For live streaming, OBS Studio, vMix Live, Wirecast, XSplit Broadcaster, and Resolume Arena are supported. Media Express, LiveKey, and Desktop Video Utility tools are included.
