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Table of Contents
Introduction .................................................................................................................................... 2
Live Gamer ULTRA S (GC553Pro) ................................................................................................... 3
Key Features ................................................................................................................................. 4
System Requirements ................................................................................................................. 6
Technical Specifications .............................................................................................................. 7
Pass-through and Capture Resolution Chart ........................................................................... 8
Capture Capability Breakdown by Video Format ..................................................................... 9
Product Overview ...................................................................................................................... 10
LED Indications .......................................................................................................................... 10
Installation ................................................................................................................................. 11
Streaming Center Software ......................................................................................................... 12
Streaming Center Plug (OBS plugin) ........................................................................................... 17
Assist Central Pro Software .......................................................................................................... 20
Contact Us ..................................................................................................................................... 22
About AVerMedia .......................................................................................................................... 22
©2025 by AVerMedia
GC553Pro
User's Guide
1
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Summary of Contents for Avermedia LIVE GAMER ULTRA S
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Page 1: Table Of Contents
GC553Pro User’s Guide Table of Contents Introduction ............................ 2 Live Gamer ULTRA S (GC553Pro) ....................3 Key Features ..........................4 System Requirements ......................... 6 Technical Specifications ......................7 Pass-through and Capture Resolution Chart ................8 Capture Capability Breakdown by Video Format ..............9 Product Overview ........................ -
Page 2: Introduction
AVerMedia product. After a quick introduction of the Live Gamer ULTRA S, we will dive into its key features, system requirements, and technical specs and show you how to set up and install the device. -
Page 3: Live Gamer Ultra S (Gc553Pro)
Live Gamer ULTRA S (GC553Pro) The Live Gamer ULTRA S is a powerful 4K video capture card designed primarily for console gamers and streamers looking to elevate their craft. In order to support the growth for aspiring streamers aiming to go pro, it delivers useful features for them to stand out in today’s competitive landscape. -
Page 4: Key Features
True Color Precision with RGB24 • Uncompressed RGB24 delivers a more immersive and visually appealing experience for your audience. By preserving full-color fidelity, it ensures every shade and detail feels more real, drawing viewers into your gameplay. ©2025 by AVerMedia... - Page 5 Innovative Materials • The Live Gamer ULTRA S features an outer shell made with 60% Post-Consumer Recycled (PCR) plastic, combining innovative materials with reliable performance. Available in both black and white, it suits your style while reflecting a commitment to mindful resource use.
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Page 6: System Requirements
• 16 GB of 2400 MHz DDR4 memory • For 4K60 MJPEG capture, requires M1 Ultra / M2 Ultra or above • HDR capture and RGB24 format are not available for macOS • iPadOS 17 or later ©2025 by AVerMedia... -
Page 7: Technical Specifications
112.6 x 66.2 x 26 mm (4.43 x 2.6 x 1.02 in) AVerMedia Assist Central Pro • AVerMedia Streaming Center (Windows only) • Supported AVerMedia Software AVerMedia Streaming Center Plug (OBS Plugin) • Firmware update tool • Weight 99 g (3.49 oz.) Live Gamer ULTRA S (GC553Pro) •... -
Page 8: Pass-Through And Capture Resolution Chart
Pass-through and Capture Resolution Chart ○: Can be captured in SDR ●: Can be captured in SDR or HDR ©2025 by AVerMedia... -
Page 9: Capture Capability Breakdown By Video Format
3840x2160 YUY2 RGB24 P010 (HDR) MJPEG NV12 3440x1440 YUY2 (Ultra-wide) RGB24 P010 (HDR) MJPEG 144/120 NV12 2560x1440 YUY2 RGB24 P010 (HDR) MJPEG NV12 2560x1080 YUY2 (Ultra-wide) RGB24 P010 (HDR) MJPEG NV12 120/60 1920x1080 YUY2 RGB24 P010 (HDR) ©2025 by AVerMedia... -
Page 10: Product Overview
Solid Blue Ready Slow Flashing Red Recording Slow Flashing Blue Streaming Fast Flashing Red Disk Almost Full Solid Red Solid Red Error: Streaming / Recording Stopped Flashing Green Connected to USB 2.0 Flashing Red Error: Device Anomaly ©2025 by AVerMedia... -
Page 11: Installation
Installation ©2025 by AVerMedia... -
Page 12: Streaming Center Software
Streaming Center's advanced layout editing tools. Installation Visit your AVerMedia product webpage and download Streaming Center. Install it by following the step-by-step instructions. Once installed, you’ll be greeted with an interface as shown below. - Page 13 Left: Edit screen. Right: Live screen. Click Transition to switch whatever is currently in the Edit screen to the Live screen. Scene panel: You can add/delete scenes here or select a scene to be edited in the Edit screen. ©2025 by AVerMedia...
- Page 14 Upon connecting a USB microphone, it should automatically be set as the default audio input. If it doesn’t appear, click the 3-line icon, select "Edit Source", and manually choose the microphone. To monitor its sound, enable “Monitor Sound.” ©2025 by AVerMedia...
- Page 15 VRR recording mode, then click "Record" to start recording VRR footage. Note: This function only supports recording from a single video source, and to faithfully record VRR footage, the video source needs to be VRR-capable and have the VRR function activated. ©2025 by AVerMedia...
- Page 16 Audio Tuning (For microphones or webcams with built-in mic) Click the “Audio Setting” to access multiple audio tuning features including AI noise reduction, EQ adjustments, and output gain control. It also supports virtual microphone output for third-party software to use the adjusted audio. ©2025 by AVerMedia...
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Page 17: Streaming Center Plug (Obs Plugin)
Streaming Center Plug. Install it by following the step-by-step instructions. Once installed, it will be shown on OBS as below. You can use the “Manage Streaming Center PLUG” to check the functions with your AVerMedia capture card. ©2025 by AVerMedia... - Page 18 5.1 Multi-Channel Audio Capture Select “Streaming Center Plug”, choose “Manage Streaming Center Plug”, and install “Multichannel Audio”. After installing, the Multichannel Audio will be shown in the list of input source. ©2025 by AVerMedia...
- Page 19 Remember to switch audio channels to 5.1 in the audio setting before recording. ©2025 by AVerMedia...
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Page 20: Assist Central Pro Software
AVerMedia Assist Central and Gaming Utility into a single, comprehensive platform designed for efficiency, usability, and scalability. It allows you to manage your AVerMedia capture card configuration by showing device information, controlling device settings, issue reporting, and more. It also provides direct download for Streaming Center and Streaming Center Plug, and helps detect the latest drivers, firmware, and software updates available for your connected AVerMedia device. - Page 21 When accessing the “Device Settings” in the Streaming Center, it will automatically open ➢ the Assist Central Pro for your device. You can also open the Assist Central Pro in the Streaming Center Plug when using OBS. ➢ Just click the tab in “Manage Streaming Center Plug”. ©2025 by AVerMedia...
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Page 22: Contact Us
AVerMedia is guided by a philosophy of contributing to society- whether through products that change customers’ lives for the better or by ensuring our operations are socially responsible.
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