Blackmagic DeckLink SDI 4K Capture Card

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Blackmagic DeckLink SDI 4K Capture Card

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Best for

Live streamingAnything going out live — switcher, encoder, capture card, PTZ and monitoring.
Broadcast and newsStation and OB workflows: SDI infrastructure, intercom, encoders, reference and timecode.
Gaming streamingDesk streaming for Twitch and YouTube: USB mic, capture card, stream deck, key light and cam.

Video inputs 1 x 10-bit SD/HD/2K/4K. Supports 6 Gb/s 4:2:2 and 3 Gb/s 4:4:4

Video outputs 1 x 10-bit SD/HD/2K/4K. Supports 6 Gb/s 4:2:2 and 3 Gb/s 4:4:4

Video standards 2160p23.98, 2160p24, 2160p25, 2160p29.97, 2160p30

SDI rates SDI video connections are switchable between SD/HD/2K and UHD

Colour precision 10-bit

Operating systems Mac 15.0 Sequoia,; Mac 26.0 Tahoe or later; Windows 10, 64-bit …

Full specifications

Overview

Product description from Blackmagic Design

DeckLink SDI 4K is perfect when you need an SDI only solution but demand the highest quality SDI capture and playback. You get incredible quality 6G-SDI on any PCI Express Mac, Windows or Linux computer. DeckLink SDI 4K is the world’s smallest and most affordable multi rate SD/HD and Ultra HD SDI video card that lets you connect to any SD, HD-SDI, 2K and Ultra HD equipment. You also get RS-422 deck control, internal keying and reference input for a complete solution for editing, paint, design and more.

Key specs

Video inputs: 1 x 10-bit SD/HD/2K/4K. Supports 6 Gb/s 4:2:2 and 3 Gb/s 4:4:4
Video outputs: 1 x 10-bit SD/HD/2K/4K. Supports 6 Gb/s 4:2:2 and 3 Gb/s 4:4:4
Video standards: 2160p23.98, 2160p24, 2160p25, 2160p29.97, 2160p30
SDI rates: SDI video connections are switchable between SD/HD/2K and UHD
Colour precision: 10-bit
Operating systems: Mac 15.0 Sequoia,; Mac 26.0 Tahoe or later; Windows 10, 64-bit …

All specifications

Manuals & downloads

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Video inputs	1 x 10-bit SD/HD/2K/4K. Supports 6 Gb/s 4:2:2 and 3 Gb/s 4:4:4	1 x 10-bit SD/HD/2K/4K. Supports 6G 4:2:2 and 3G 4:4:4	1 x HDMI type A connector	1 x 3Gb/s SD/HD switchable
Video outputs	1 x 10-bit SD/HD/2K/4K. Supports 6 Gb/s 4:2:2 and 3 Gb/s 4:4:4	1 x 10-bit SD/HD/2K/4K. Supports 6G 4:2:2 and 3G 4:4:4	1 x HDMI type A connector	2 x 3Gb/s SD/HD switchable, supports fill and key
Video standards	2160p23.98, 2160p24, 2160p25, 2160p29.97, 2160p30	2160p23.98, 2160p24, 2160p25, 2160p29.97, 2160p30	2160p23.98, 2160p24, 2160p25, 2160p29.97, 2160p30	—Not listed
SDI rates	SDI video connections are switchable between SD/HD/2K and UHD	—Not listed	—Not listed	270Mb, 1.5G, 3G
Colour precision	10-bit	10-bit	REC 601, REC 709	REC 601, REC 709
Operating systems	Mac 15.0 Sequoia,; Mac 26.0 Tahoe or later; Windows 10, 64-bit …	Mac 15.0 Sequoia,; Mac 26.0 Tahoe or later; Windows 10, 64-bit …	Mac 15.0 Sequoia,; Mac 26.0 Tahoe or later; Windows 10, 64-bit …	Mac 15.0 Sequoia,; Mac 26.0 Tahoe or later; Windows 10, 64-bit …

Full specifications

Connections

SDI Video Inputs	1 x 10-bit SD/HD/2K/4K. Supports 6 Gb/s 4:2:2 and 3 Gb/s 4:4:4.
SDI Video Outputs	1 x 10-bit SD/HD/2K/4K. Supports 6 Gb/s 4:2:2 and 3 Gb/s 4:4:4.
SDI Audio Inputs	16 Channels embedded in HD/2K/4K. 8 Channels embedded in SD.
SDI Audio Outputs	16 Channels embedded in HD/2K/4K. 8 Channels embedded in SD.
Sync Input	Tri-Sync or Black Burst.
Device Control	Sony™ compatible RS422 deck control ports. Serial ports TxRx direction reversible under software control.
Computer Interface	PCI Express 4 lane generation 2, compatible with 4,8 and 16 lane PCI Express slots.

Software

Software Included	Media Express, Disk Speed Test, LiveKey, Blackmagic Desktop Video Utility and Blackmagic driver on Mac OS and Windows. Media Express, Blackmagic Desktop Video Utility and Blackmagic driver on Linux.
Internal Software Upgrade	Firmware built into software driver. Loaded at system start or via updater software.
Physical Installation	PCI Express 4 lane generation 2, compatible with 4, 8, 16 lane PCI Express slots on Mac OS, Windows and Linux. Please check the Support pages to see the full system requirements.

Video Standards

SD Video Standards	525i59.94 NTSC, 625i50 PAL
HD Video Standards	720p50, 720p59.94, 720p60; 1080p23.98, 1080p24, 1080p25, 1080p30, 1080p50, 1080p59.94, 1080p60; 1080PsF23.98, 1080PsF24, 1080PsF25, 1080PsF29.97, 1080PsF30; 1080i50, 1080i59.94, 1080i60
2K Video Standards (SDI Only)	2K DCI 23.98p, 2K DCI 24p, 2K DCI 25p
Ultra HD Video Standards	2160p23.98, 2160p24, 2160p25, 2160p29.97, 2160p30
4K Video Standards	4K DCI 23.98p, 4K DCI 24p, 4K DCI 25p
SDI Compliance	SMPTE 259M, SMPTE 292M, SMPTE 296M SMPTE 372M, SMPTE 425M, SMPTE 2081, ITU-R BT.656 and ITU-R BT.601.
SDI Metadata Support	RP 188/SMPTE 12M-2 and closed captioning.
Audio Sampling	Television standard sample rate of 48 kHz at 24 bit.
Video Sampling	4:2:2 and 4:4:4; 4K is 4:2:2
Color Precision	10-bit.
Color Space	REC 601, REC 709.
Multiple Rate Support	SDI video connections are switchable between SD/HD/2K and UHD.

Processing

HD Down Conversion	Built in, high quality hardware down converter outputs HD or SD on SDI output. Selectable between letterbox, anamorphic 16:9 and center cut 4:3 styles.
HD Up Conversion	Built in, high quality software up converter from SD to HD on input. Selectable between 16:9 Zoom or anamorphic.
Cross Conversion	Software based cross conversion from 720HD to 1080HD and 1080HD to 720HD on playback.
Real Time Effects	DaVinci Resolve, Final Cut Pro X internal effects. Premiere Pro CC Mercury Playback Engine effects. Avid Media Composer internal effects.
Colorspace Conversion	Hardware based real time.

Other specifications

Operating Systems	Mac 15.0 Sequoia,; Mac 26.0 Tahoe or later.; Windows 10, 64-bit.; Windows 11.; Linux

Environmental Specifications

Operating Temperature	5° to 40° C (32° to 104° F)
Storage Temperature	-20° to 45° C (-4° to 113° F)
Relative Humidity	0% to 90% non-condensing

Manuals & downloads

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Questions about this product

Quick answers about the Blackmagic DeckLink SDI 4K Capture Card. Not covered here? We reply personally on WhatsApp, 10 am–7 pm IST, Mon–Sat.

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What connections does the Blackmagic Design DeckLink SDI 4K have?

The Blackmagic Design DeckLink SDI 4K connects over SDI.

What is the maximum resolution of the Blackmagic Design DeckLink SDI 4K?

The Blackmagic Design DeckLink SDI 4K supports a maximum resolution of 4K.

What is the part number for the Blackmagic Design DeckLink SDI 4K?

The part number (model) of the Blackmagic Design DeckLink SDI 4K is W-DLK-11.

Is there a manual or datasheet for the Blackmagic Design DeckLink SDI 4K?

Yes. The documents for the Blackmagic Design DeckLink SDI 4K include DeckLink SDI 4K - User Manual. They are linked in the Documents section of this page.