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USER MANUAL 4KCH BZBGear
USB-C 4K Video Capture Box with Scaler
User Manual

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B28 GE4RTABLE OF CONTENTS
INTRODUCTION 1
FEATURES....1
PACKAGE CONTENTS 1
SPECIFICATIONS....2
PANEL DESCRIPTIONS....3
CONNECTION DIAGRAM....3
VIDEO STREAMING 4
TROUBLESHOOTING....12
USB PIN DEFINITION....12
TECH SUPPORT....13
WARRANTY 13
MISSION STATEMENT....13
INTRODUCTION
The BG-4KCH USB-C 4K Video Capture Box with Scaler provides a simple, reliable way to capture HDMI video signals. Users can instantly capture HDMI signals from devices like PTZ cameras, video game consoles, or PC's for broadcast to streaming services including YouTube, Twitch, and Facebook. The utilization of large volume image buffer technology prevents video tearing, allowing for optimal image reproduction. Compact and portable, the BG-4KCH is an ideal fit for a video technicians toolkit, as well as anyone needing a discreet capture device.
FEATURES
• HDMI video and audio streams over USB 3.1 Type-C Gen 1
• Supports UVC1.0/1.1/1.5
• Supports video resolution up to 4K2K@30
• Supports deinterlace & scaler*
• Auto-detection on video format to ensure plug-play operations
• Recording Video Format: Software Compression
- Works on multiple operating system platforms (Windows 7/8.1/10, Mac and Linux OS)
- Compatible with most 3 ^rd party software including YouTube, Twitch, Facebook, OBS Studio, and Zoom
- Supports USB 3.1 Gen 1 (RGB/YUY2/NV12) (capture up to 4K2K@30) and USB 2.0 (YUY2/NV12) (capture up to 720P@30)
- Low Latency (3\~4ms at 1080P)
• System Requirements (Recommended)
- Windows ^® 7(SP1) / Windows 8.1 / Windows 10
- PC: Intel® CoreTM i5-4440 3.10GHz + NVIDIA® GeForce® GTX 660 or higher
- Laptop: Intel® Core i7-4810MQ + NVIDIA GeForce GTX 870M or higher
- 4GB RAM or higher
SPECIFICATIONS
| Model Name | BG-4KCH |
| Technical | |
| Role of usage | Video Capture Device |
| Input Video bandwidth | 297MHz |
| Output bandwidth | Up to 350Mbps (USB-C) |
| Video support(USB-C) | Up to 4K2K@30 |
| Audio Input | HDMI Embedded Audio |
| Audio Format | 2CH 16bit PCM |
| Recording Mode | Software Compression |
| Recording Video Format | RGB/YUY2/NV12 (USB3.1 Gen 1), YUY2/NV12 (USB2.0) |
| ESD protection | Human body model — ±15kV [air-gap discharge] & ±8kV [contact discharge] |
| PCB stack-up | 4-layer board [impedance control — differential 100Ω; single 50Ω] |
| Firmware update | Feasible via USB-C Port |
| Input | 1x HDMI |
| Output | 1x USB-C |
| HDMI connector | Type A [19-pin female] |
| USB connector | USB 3.1 Type C (SuperSpeed USB) |
| Software compatibility (not complete list) | OBS Studio (Windows, Linux, MAC), Potplayer (Windows), VLC (MAC, Linux), AMCap (Windows), XSplit Boardcast (Windows), Skype (Windows, MAC), Zoom (Windows), Hangout (Windows), TeamViewer (Windows) |
PANEL DESCRIPTIONS

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Back view of a black electronic device with a labeled port and two ports (no text or symbols beyond the label)
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Back panel of a device showing two ports with a central display and numbered labels (2 and 3) pointing to them, no readable text or symbols beyond labels.- USB-C OUT: Connect to a USB host (PC, NB, MAC...)
- LED INDICATOR: Power & input signal indicator LED
[Blue] Device power on
[Green] Input detects HDMI signal
[Red]* Input source is HDCP protected
- HDMI IN: Connect to an HDMI source

*When the input source is HDCP protected, LED will become red to indicate the content is legally encrypted and can NOT be captured.
CONNECTION DIAGRAM
VIDEO STREAMING
Create a Video Stream
Users can create video streams on their streaming platform of choice. The below steps show how to complete the video streaming settings from Twitch and YouTube.
Twitch
- Browse the Twitch website (https://www.twitch.tv/) and log in, then select "Creator Dashboard" from your account drop-down menu at the top right of the screen.

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Log In to Twitch Log In: Sign Up Username Password Trouble logging it? Log In: or Connect with Facebook MCanning StarCraft II 292 viewers English My name is Chris 'MCanning' anning and I am a grandmaster aircraft two players! I prize myself n being one of the select few aircraft streamers who can play he game at a high level and talk retty much constantly throughout! User Online Share My Activity Channel Video Producer Creator Dashboard Friends Subscriptions Inventory Wallet-
Find "Preferences" in the left menu, and click "Channel", then you will see "Primary Steam key" on the screen. Copy the "Primary Steam key" and paste it into the "Stream Key" field in the OBS, then click "Start Streaming"
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Go back to Twitch and select "Channel" from your account drop-down menu.

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Channel CREATOR DASHBOARD Home Stream Manager Insights Community Content Preferences Channel Moderation Drops Streaming Tools Stream Key & Preferences Primary Stream key Show Disconnect Protection Improve the viewing experience for your stream by enodizing a backup in their disconnected. If your primary stream fails, automatically deple a temporary seconds while you troubleshoot and reconnect. *Note: This requires the use properly. Store past broadcasts Automatically save broadcasts for up to 14 days 600 days for Partners, Turbo and Prime users! Nature Content Back to Twitch Channel Account Settings Language Dark Theme Log Out- At this point, you will see the player start live streaming.

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Following Browser Esports Music ... Search User Home Videos Clips Followers STREAM CHAT Welcome to the chat room!YouTube
- Browse the YouTube website (https://www.youtube.com/) and log In, then lick "Go live" from the "Create" icon menu at the top right of the screen.
* If your account is using YouTube for the first time to create a video stream, you need to wait 24 hours to enable the function.

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Google Sign in to continue to YouTube Email or phone ! Forgot email? Not your computer? Use Quest mode to sign in privately. Learn more Create account Next Upload video (G) Go live 7:16 Full TimeLapse 45:38- Click "Stream" in the left menu, and fill in the relevant information of the live video to create a new stream.

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Studio (+) Stream New stream Create a title Public- You will see "Stream key" from the "STREAM SETTINGS" below. Copy the "Stream key" and paste it into the "Stream Key" field in the OBS, then click "Start Streaming" in the software.
* Please refer to steps 4-6 of the OBS software control program.

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Studio No data STREAM SETTINGS ANALYTICS STREAM HEALTH Stream key Auto-generated key ****** Copy rtmp/la.rtmp.youtube.com/live2 Copy rtmp/lb.rtmp.youtube.com/live2?backu Copy Additional settings Enable Auto-start Enable Auto-stop Enable DVR 360° video None Live Say something... GO LIVE Live GETON- Next, go back to YouTube, and then wait for 30-60 seconds, the player will display the live preview. At the same time, the "GO LIVE" button at the top right will turn blue, please press this button.

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Studio REVIEW Live Category Science & Technology Document Items 0 0 Good connection STREAM SETTINGS ANALYTICS STREAM HEALTH GET LIVE Welcome to live chat member for your user who and click her community guidelines LEARN MOREStream and record videos with OBS
OBS is popular USB capture freeware and has excellent compatibility. Please start with OBS if users are not familiar with USB capture device.
Download the software
Browse the download page of the OBS official website (https://obsproject.com/download), then select the suitable computer operating system and start downloading.

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OBS Open Broadcaster Software® Home Download Blog Help Forum Download OBS Studio Select Your Operating SystemStart the software control program
After downloading the software, please open it and follow the below steps to complete the video streaming settings.

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File Edit View Tools SaveCollected Tools Help- First, find the "Scenes" window, click "+" in the lower left corner, and then enter the name of the scene to create a new scene.

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Scene 1 + - ^
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Add Scene Please enter the name of the scene Scene 4 OK Cancel- Find the "Source" window, click "+" in the lower left corner, and then select "Display Capture" or "Video Capture Device" to create a new source.

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Sources You don't have any sources. Click the + button below, or right click here to add one.
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Audio Input Capture Audio Output Capture Brownet Color Source Display Capture Game Capture Image Image Slide Show Media Source Scene Text (SDIs) Video Capture Devices Window Capture Group Deprecated
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Create/Select Source ✓ Create new Video Capture Devnl ✓ Add Existing ✓ Make source visible OK Cancel-
Next you can get display continuity properties. If you select "Display Continues" in step 2, you can select the primary
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Click "Settings" and then select "Stream" to perform streaming settings. Users can choose service providers, including Twitch, YouTube, etc.

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Settings Add Remove Add Remove Add Remove Add Settags Exit Controls Start Streaming Start Recording Studio Mode Settings Exit Video Add Remove Add Add Add Add Add Add Add Add Add Add Add Add Add Add Add Add Add Add Add Add Add Add Add Add Add Add Add Add Add Add Add Add Add Add Add Add Add Add Add Add Add Add Add Add Add Add Add Add Add Add Edit... Cancel... Apply...- Paste the stream key provided by the service provider into the "Stream Key" field, then click "Apply" and "OK" after setting. In addition, users can lick "Get Stream Key" at this step to open the service provider website.

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Service: YouTube / YouTube Gaming Server: Primary YouTube to put server. Stream Key Show Get Stream Key- On the other hand, users can also click "Start Recording" to record videos with OBS. Besides, you can click "Settings" and then select "Output" to set "Recording Path" and "Recording Format".

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Options Start Streaming Start Recording Studio Mode Settages Exit Output Mode: Simple Streamings Volume Block: 2500 Bits Audio Block: Software (RGB) Audio Block: 100 Fable Advanced Marker Setup Recording Recording Exit: C:\Users\Use\Video Controls File\Show\Student\Splice Recording Output: Smooth mode Recording Peak: 5bit Custom Mode Settings Fable Marker Settings Warnings: Recordings cannot be present of the recording output is set to "Show as necessary".
The procedures the manual demonstrates are based on the interface that each website provided at the time the manual was written. These procedures may not be accurate and are subject to change by the provider.
TROUBLESHOOTING
- The BG-4KCH supports HDCP to protect legal content from copyright infringement. If an HDMI input is equipped with HDCP protection, the status LED will turn red to indicate the presence of HDCP. No capture will be legally allowed if HDCP is detected. Please use non-HDCP protected HDMI sources or disable HDCP in order to enable content capture. Check connected device for an option to disable HDCP.
- Due to the complexities of OS and computer hardware, different USB ports on your PC or laptop may have different performance or limitations. If the device does not work on one USB connection it still may work on another.
- If video quality is low or the video connection is intermittent, try another HDMI cable.
USB PIN DEFINITION

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P1 P2TECH SUPPORT
Before contacting tech support, we may have answered your question already! Visit our BZBGEAR support page at bzbgear.com/support for valuable information on our products.
Here you will find our Knowledge Base (bzbgear.com/knowledge-base) consisting of tutorials, quick start guides, and step-by-step troubleshooting instructions. Also visit our YouTube channel BZB TV at youtube.com/c/BZBTVchannel for help setting up, connecting, and other how-to videos regarding our products.
If you still need answers, please call 1.888.499.9906, email support@bzbgear.com, or chat at bzbgear.com.
WARRANTY
BZBGEAR Pro AV products and Cameras come with a three-year warranty. An extended two-year warranty is available for our Cameras upon registration for a total of five years.
For an extended two-year warranty on our Cameras, follow these steps:
- Register your Camera within 90 days of purchase by visiting bzbgear.com/warranty.
- Complete the registration form. Provide all necessary proof of purchase details, including serial number and a copy of your sales receipt.
For complete warranty information. please visit bzbgear.com/warranty or scan the OR code below.