Magewell Pro Capture HDMI 4K Plus LT (Loop Through) Video Capture Card
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The Magewell Pro Capture HDMI 4K Plus LT (Loop Through) Video Capture Card captures two channels of Ultra HD video with embedded audio on each single card with a HDMI loop-through. The loop-through connections does not require external HDMI splitters by enabling each source signal to be sent concurrently to additional displays or equipment.
HDMI Specific Features
- 594MHz HDMI receiver
- Adaptive HDMI equalizer
- Support for customized EDID
- Support for extraction of AVI/Audio/SPD/MS/VS/ACP/ISRC1/ISRC2/Gamut/HDR/VBI InfoFrames
- Full colorimetry support
- Support for 8/10/12-bit color depths
- Support for RGB 4:4:4, YCbCr 4:4:4, YCbCr 4:2:2 color sampling
- Support for up to 8-channel IEC60958/IEC61937 audio streams
- Support for extraction of audio formation information & channel status data
- Support for extraction of video timing information
- Support for extraction of 3D format information
- Support for extraction of Sony/Canon DSLR time code
- Support for Side-by-Side Half, Top-and-Bottom, Frame Packing 3D mode.
- Support for HDR10
Video Processing Features
- Two video processing pipelines with ~720Mpixels/s processing bandwidth for each one
- Full 10-bit video processing
- Video cropping
- Video scaling
- Video de-interlacing
- Weave
- Blend top & bottom field
- Top field only
- Bottom field only
- Video aspect ratio conversion
- Auto or manual selection of input aspect ratio
- Auto or manual selection of capture aspect ratio
- Three aspect ratio conversion modes: Ignore (Anamorphic), Cropping or Padding (Letterbox or Pillarbox)
- Video color format conversion
- Auto or manual selection of input color format & quantization range
- Auto or manual selection of capture color format, quantization range & saturation range
- Support for RGB, YCbCr 601, YCbCr 709, YCbCr 2020 color formats
- Support for Limited or Full quantization range
- Support for Limited, Full & ‘Extended gamut’ saturation range
- Video frame rate conversion
- Video OSD composition
- Support for PNG OSD image (up to 4096x2160)
- Support for dynamic loading of RGBA OSD image via SDK
Multiple Cards per System
Magewell boasts support for multiple cards plugged to one system. The on-board rotary switch is designed to set the card number, with 16 positions from 0 to F. The system hardware device tree will display “01: Pro Capture HDMI 4K+ LT” when the rotary switch is set to 1, and so on. The video and audio device names displayed in your software will include the card number (set by the rotary switch).
General
| Weight | Not Available |
Power
| Operating Temperature | 0 to 40 deg C |
Input / Output
| Video Output | HDMI |
| HDMI Inputs | 1 |
| Video Input | HDMI |
| Audio Input | HDMI Embedded |
- Linux (support x86, x64 & ARM architecture):
- Ubuntu 12.04/14.04/16.04/17.04/17.10 (x86 & x64)
- CentOS 6.5/7 (x86 & x64)
- Fedora 25/26/27 (x86 & x64)
- Red hat 6.5 and above (x86 & x64)
- OS X 10.9/10.10/10.11
- macOS 10.12/10.13
- Ubuntu 12.04/14.04/16.04 (x86 & x64)
- Ubuntu 17.04/17.10 (x64)
- CentOS 6.5/7.2 (x86 & x64)
- Fedora 25/26 (x64)
- Red hat 6.5 (x86 & x64)
- OS X 10.9.5/10.10/10.11.2/10.11.3/10.11.4
- macOS 10.12/10.13.2/10.13.3
- DirectShow
- DirectKS
- Wave API/DirectSound/WASAPI
- V4L2
- ALSA
- Pulsing slowly: idle
- On: input signal locked
- Off: input signal unlocked
- Double blinks: memory failed or FPGA configuration failed
Supported OS
| Windows | Windows 7/8/8.1/10/Server 2008/Server 2008 R2/Server 2012/Server 2016 (x86 & x64) |
| Mac |
Recommended OS (tested)
| Windows | Windows 7 Ultimate/8.1 Enterprise/10 Enterprise/Server 2008 R2 DataCenter/Server 2012 R2 DataCenter/Server 2016 R2 DataCenter (x86 & x64) |
| Linux | |
| Mac | |
Supported APIs
| Windows | |
| Linux | |
Supported Software
| VLC | |
| VirtualDub | |
| OBS | |
| XSplit | |
| vMix | |
| VidBlaster | |
| Wirecast | |
| Microsoft Media Encoder | |
| Adobe Flash Media Encoder | |
| Any other DirectShow/V4L2 encoding/streaming software |
Input Features
| Support for input video resolutions up to 4096x2160 pixels |
Video Capture Formats
| Support for capture image resolutions up to 4096x2160 pixels | |
| Support for capture frame rates up to 144fps (Actual capture frame rate can be limited by PCIe bandwidth & image resolution) | |
| Support for 4 | 2:0 8-bit capture formats: NV12, I420, YV12 |
| Support for 4 | 2:2 8-bit capture formats: YUY2, YUYV, UYVY |
| Support for 4 | 4:4 8-bit capture formats: V308, IYU2, V408, BGR24, BGR32 |
| Support for 4 | 4:4 10-bit capture formats: V410, Y410 |
| More capture formats are supported via Magewell Capture SDK for DirectKS |
Ultra Low Latency Support
| Latency of 64 video lines | |
| Partial notification mode in SDK |
Timestamp & A/V Synchronization
| Hardware based 100ns high resolution clock | |
| Audio frames (192 audio samples) & video frames are stamped with hardware clock | |
| Hardware clock can be synchronized across cards (via SDK) |
Video Capture SG-DMA
| ~1600MB/s per channel DMA bandwidth in PCIe 2.x system | |
| ~800MB/s per channel DMA bandwidth in PCIe 1.x system | |
| Support for auto detection of Intel tiled GPU surface | |
| Support for DirectGMA for AMD video adapter chipsets | |
| Support for GPUDirect for Nvidia video adapter chipsets |
SDK
| Magewell Capture SDK for DirectShow for easy integration (Windows) | |
| Magewell Capture SDK for DirectKS for maximum flexibility & performance (Windows) |
Windows Driver Tweaks
| All options can be controlled by three levels of registry key | global level, product level and device level |
Firmware Upgrade
| Multiple cards in one system can be upgraded simultaneously | |
| Cards can be upgraded without a system power shutdown (In most cases, even a reboot is not needed) |
LED Indicator
| Status LEDs indicate the working state of each channel |
Form Factor
| Low profile PCIe x4 Add-on Card | |
| 140mm x 68.88mm (without PCI bracket) |
Power Consumption
| Max current at 12V | ~ 0.48 A |
| Max current at 3.3V | ~ 0.82 A |
| Max power consumption | ~ 8.08 W |
Working Environment
| Operating temperature | 0 to 40 deg C |
| Storage temperature | –20 to 70 deg C |
| Relative Humidity | 5% to 90% non-condensing |
Frequently Asked Questions
How do I return an item?
How do I return an item?
Returns are incredibly simple. Please log into your account, find your item you wish to return and follow the prompts to make a return. If you do not have an account, click here to find your order and make a return.
Will I receive a full refund when I return an item?
Will I receive a full refund when I return an item?
You will receive a full refund when you return an item in its original manufacturer’s packaging, undamaged and unmarked. If the item you are returning is priced at less than $35, you will be charged a 15% restocking fee. Please note you will not be refunded any shipping charges.
How many days do I have to make a return?
How many days do I have to make a return?
You have 30 days to make a return. During the holiday season, from November 1 to December 31, we extend the return window to 60 days.
My item was damaged in transit. How do I place a return?
My item was damaged in transit. How do I place a return?
If your order has been noticeably damaged in transit, we strongly recommend that you refuse delivery and notify us immediately. Claims for missing items or items damaged in transit must be made within 48 hours of delivery. If there is carrier damage, please contact support@focuscamera.com with your order number and a description of the damage.
There’s an issue with my order, what should I do?
There’s an issue with my order, what should I do?
Oh no! Please contact our customer service team so we can resolve the issue immediately. You can call us on 1.800.221.0828, email us at support@focuscamera.com, or send us a message here.
Can I exchange an item?
Can I exchange an item?
We do not currently offer exchanges. Please return the item you purchased within 30 days and order what you’d like instead.
If I ordered a kit, do I have to return all the items?
If I ordered a kit, do I have to return all the items?
If you ordered a kit, you must return all components and accessories to receive a full refund.
I ordered a product that included a free item. I’d like to return it, do I need to return the free item as well?
I ordered a product that included a free item. I’d like to return it, do I need to return the free item as well?
If you ordered a product that included a free item, you must include the free item with your return. If not, your return will not be accepted and you will not receive a full refund.
Do you offer repairs?
Do you offer repairs?
We currently only offer camera repairs at our Brooklyn store. The item must be dropped off and collected in person as we do not accept shipped items for repair. For more information, please call our Brooklyn store on 1.718.431.7900.
What is your return policy?
What is your return policy?
Most items can be returned within 30 days for a full refund. Click here to read our full return policy.


