The Magewell USB Capture SDI 4K Plus is a powerful 4K SDI to USB capture dongle and allows users to bring one SD/HD/3G/2K/6G SDI signal to any computer or laptop through USB 3.0. This capture dongle accepts HD or 4K SDI (4096x2160) video signals and captures video up to 4096x2160 120fps. The Magewell USB Capture SDI 4K Plus offers SDI signal loop-through and supports discrete analog input and output for capture and monitoring. They are ideal for use with software for broadcasting, streaming, web conferencing, lecture capture, live production, medical imaging and more.

The firm housing of this dongle makes it suitable for any setting and avoids the risk of overheating.

The Magewell USB Capture Utility enables users to set their own desired capture-related parameters such as, capture resolution, color space, frame rate (and much more)

- One-channel 4K capture device 
- Capture SD/HD/3G/2K/6G SDI + embedded audio 
- Loop-through SD/HD/3G/2K/6G SDI 
- Audio input via Line in 
- Extract SDI embedded audio and output via Line out

Capture and Stream in 4K
The Magewell USB Capture SDI 4K Plus dongle is capable of bringing SD/HD/3G/2K/6G SDI and audio inputs to any computer or laptop through USB 3.0. This capture dongle accepts HD or 4K video signals and captures up to 4096x2160 120fps for recording or streaming. The USB Capture Plus family offers users more power with added features including output for video capture and monitoring, and signal loop-through. Moreover, discrete analog audio is supported on all USB plus devices. Our Capture dongles offer true plug-and-play operation and feature driver-free installation. In addition, they are instantly recognized by many streaming software and run on any Windows, Mac, Linux and Chrome system.

Video Input & loop-through resolution: Support for SD/HD/3G/6G-SDI BNC video input and loop-through resolution up to 4096x2160 120fps
Audio Input: Support for audio input up to 8-channel 24-bit SDI-embedded audio at 192kHz, and audio via 3.5mm microphone interface.
Video Capture Format: Processing output up to 4096x2160 120pfs- 8-bit video processing (up- or down-covert parameters).
Audio Output: Output audio of SDI signal via 3.5 mm line out. Up to 2 audio channels at 48KHz

Ultra Low Latency, High Frame Rate Capture
The Magewell USB Capture SDI 4K Plus offers low-latency and high frame rate capture at 120fps to ensure smooth and professional video production. The Loop-through feature enables users to stream and record video with minimal delay. For optimal low-latency performance, it is very important that users select the right software and hardware during the entire capturing process.

Versatile
The Magewell USB Capture SDI 4K Plus is used across many different industries and serves each in its own way. This dongle is able to capture SDI signals that are transmitted from a distance up to 150 meters (3G-SDI). Its versatility and compatibility with a wide variety of software makes the dongle suitable for Broadcasting, streaming, web conferencing, lecture capture, live production, medical imaging and more.

FPGA-based Video Processing
Magewell has implemented FPGA-based video processing into all USB capture Plus devices for high-quality up/down conversion and image adjustments. The dongles do not require additional power sources and have a zero-CPU-usage to maximize CPU availability for third-party software.

Advanced settings - USB Capture Utility
The Magewell USB Capture Utility enables users to set their own desired capture-related parameters such as, capture resolution, color space, frame rate (and much more).

Input Features
Max input & loop through video at 6G 4K (4096×2160 30fps 4:2:2 10-bit)
Input RGB/YUV 4:4:4 10/12-bit, YUV 4:2:2 8/10/12-bit, RGBA/YUVA 4:4:4:4 10-bit
Up to 8-channel embedded audio
Input analog audio via 3.5mm line in
SD/HD/3G/6G-SDI BNC input & loop through
SD (ST 259)/HD (ST 292)/3Ga (ST 425)/3Gb-DL (ST 425)/3Gb-DS (ST 425)/6G 4k(ST 2081) standard Input SDI signals transmitted up to 75m for 6G-SDI signal

Process and Capture Features
Video processing pipelines with ~640Mpixels/s processing bandwidth
Capture videos up to 4096x2160, frame rates up to 120fps. Outputs include (actual capture frame rate can be limited by the USB bandwidth and internal working frequency.):
4096x2160p/3840x2160p 23.98/24/25/29.97/30 
2560x1440p60
1920x1080p/1280x720p 23.98/24/25/29.97/30/50/59.94/60/90 
720x576p25
720x480p30
Output NV12/I420/YUYV/UYVY/RGB24/RGB32 videos
Support video cropping, up/down scaling, de-interlacing, aspect ratio conversion, color format conversion, frame rate conversion, flip and mirror
Output audio of SDI signal via 3.5 mm line out
Up to 2 audio channels at 48KHz

Included Software
USB Capture Utility enables users to easily check and set the capture-related parameters, upgrade firmware of the capture device and export info needed for troubleshooting

SDK & APIs
The MWCapture SDK provides functions including signal status extraction, capture configuration and real-time audio & video capture, etc
Windows DirectShow/Wave API/DirectSound/WASAPI
Linux V4L2/ALSA
macOS AVCaptureSession/AudioUnit

Output Interface
USB 3.0
compatible with USB 2.0
compatible with USB 3.1 Gen 1

Compatible Software
Zoom Rooms
Microsoft Teams
Skype for Business
Google Hangouts
vMix
GoToMeeting
Gstreamer
VLC
OBS Studio
XSplit
QuickTime Player
Any other DirectShow/V4L2/AVCaptureSession based encoding or streaming software

Recommended OS
Windows 7/8/8.1/10/11/Server 2008/Server 2008 R2/Server 2012/Server 2016 (x86 & x64) and above
Linux x86, x64 & ARM architecture, with 2.6.35 and above
Mac OS X 10.9/macOS 10.12 and above
Chrome OS

LED Indicator
Status LEDs indicate the working state of the device:
Pulsing slowly: input signal unlocked
On: input signal locked
Double blinks: memory abnormal or FPGA configuration failed
Off: firmware or power supply abnormal

Form Factor
4.36 inch (L) x 2.24 inch (W) x 0.67 inch (H) (110.7mm x 56.8mm x 17mm)

Accessories
1 × USB 3.0 cable

Power Consumption
5V max current: ~0.86 A
max power consumption: ~ 4.3 W

Working Environment
Operating temperature: 0 to 45 deg C
Storage temperature: -20 to 70 deg C
Relative Humidity: 5% to 90% non-condensing