Guermok
Guermok 4K USB 3.0 HDMI Capture Card for Streaming with PD 100W
Bottom line: The Guermok 4K USB 3.0 HDMI Capture Card for Streaming with PD 100W ($30.99 on Amazon as of 2026-10-06): 4K@60 capture in MJPEG over USB 3.0 for sharp gameplay recordings; main trade-off: YUY2 capture tops out at 4K/25Hz; XRGB is limited to 1080p/60Hz.
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*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.
Pros & Cons
Pros
- ✓ 4K@60 capture in MJPEG over USB 3.0 for sharp gameplay recordings
- ✓ Accepts 1440p and 1080p input at 120FPS for fast-paced games
- ✓ PD 100W USB-C passthrough keeps your tablet or laptop charged while capturing
- ✓ Driver-free; works with OBS, Streamlabs, vMix, Zoom, VLC and QuickTime
- ✓ Runs on Windows, macOS, Linux, Android 5.0+ and PadOS 17+; USB-A adapter included
Cons
- ✗ YUY2 capture tops out at 4K/25Hz; XRGB is limited to 1080p/60Hz
- ✗ USB 2.0 ports limit capture to 1080p
- ✗ Capture only; no HDMI output to a monitor or TV
- ✗ PD charging does not work through the included USB-A adapter
Manufacturer description
The Guermok 4K USB 3.0 HDMI capture card turns any HDMI source into a video feed your computer or tablet can record or stream. Plug in a Switch 2, PS5, DSLR, or VR headset, and your capture software sees the signal. It captures at up to 4K@60 in MJPEG and accepts high-refresh input at 2560x1440@120FPS and 1920x1080@120FPS, so fast-paced games stay smooth. Its standout feature is PD 100W USB-C charging passthrough. It powers the device running your capture software, such as a tablet, pad, or MacBook, during long streaming sessions. It does not charge the HDMI source or a display. There are no…
SpecPicks Verdict
SpecPicks scored Guermok 4K USB 3.0 HDMI Capture Card for Streaming with PD 100W using a rating × review-volume × price-fit model applied to published specs and reviews across the streaming gear category. Guermok's streaming gear lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.
Common buyer scenarios for streaming gear of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.
Frequently Asked Questions
Does the Guermok capture card work with Nintendo Switch 2?
Yes. Guermok lists Switch 2 and Switch 1 as supported HDMI sources. Connect the dock's HDMI output to the card, plug the card into your computer or tablet, and open capture software such as OBS Studio.
Why is my capture stuck at 1080p?
USB 2.0 ports only support up to 1080p, so use a USB 3.0 or faster port. If the card still outputs 1080p on a USB 3.0 port, rotate its USB-C connector 180 degrees and reconnect it. Also check the format: 4K@60 needs MJPEG, and YUY2 reaches only 4K@25Hz.
Can I use it with an iPad or Android tablet?
Yes. It supports PadOS 17+ and Android 5.0+ through the USB-C connection. The PD 100W passthrough can charge the tablet while it runs the capture app, but only through a compatible USB-C port, not the USB-A adapter.
Why do I get a black screen when capturing a PS5?
The PS5 applies HDCP protection to its HDMI output. Turn off HDCP in the PS5 system settings and the capture card will receive a usable signal.
Will the 100W PD port charge my console or camera?
No. PD charging only powers the device on the capture side, meaning the computer or tablet running the software. It does not charge the HDMI source device or a display.
Key Features
- 【4K Ultra HD 60FPS Capture with PD 100W Charging】Supports stunning 4K Ultra HD video capture at 60FPS via USB 3.0, delivering crystal-clear, vibrant, and highly detailed footage. This HDMI Video Capture Card also supports PD 100W USB-C charging passthrough for compatible USB-C host devices on the capture side. MJPEG:4K/60HZ, YUY2:4K/25HZ, XRGB:1080P/60HZ. Note: For capture use only; requires capture software to function and is not intended for direct screen casting to a monitor or TV
- 【High Refresh Rate Input: 2K@120FPS & 1080P@120FPS】Handles high-frame-rate video input including 2560×1440@120FPS and 1920×1080@120FPS. Supports MJPEG, YUY2, NV12, and XRGB formats, providing smooth, detailed video capture for fast-paced games and dynamic content using a reliable HDMI to USB-C capture card. Please use a USB 3.0 or higher port to connect the device. USB 2.0 ports only support up to 1080P resolution. If the device still outputs 1080P when connected to a USB 3.0 or higher port, please rotate the capture card’s USB-C connector 180° and reconnect
- 【Capture While Charging Your Tablet or Pad】Designed for tablet, pad, and compatible USB-C host capture setups, this capture card supports PD 100W USB-C charging passthrough to help keep the device running the capture software powered during long recording or streaming sessions. Please note: the charging function only supports the device on the capture/software side, not the HDMI source device or display device
- 【Versatile Device Support Optimized for Live Streaming】Plug and Play with capture software—no drivers required; connect the capture card, open your preferred capture or streaming software, and start recording or streaming. Works seamlessly with Pad, tablet, MacOS laptops, Switch 2/1, PC, DSLR cameras, and VR headsets, making it suitable for gameplay broadcasting, virtual events, real-time content creation, and other live streaming setups
- 【Broad Software, OS & Adapter Compatibility】Compatible with popular streaming and recording apps like OBS Studio, Streamlabs, Zoom, VLC, PotPlayer, YouTube, Twitch, Vmix, HDMI Link, MoniCon, QuickTime, and more. Also works with Windows 7/8/10/11, macOS, Linux, Android 5.0+, and PadOS 17+. Includes USB-A male to USB-C female adapter for flexible capture connection. Please note: PD charging is only supported through compatible USB-C ports, not through the USB-A adapter
- 【Note】This capture card supports one-way transmission (HDMI to USB-C). Video input via USB-C to HDMI conversion may cause signal loss due to cable protocol differences. If the PS5 shows a black screen, please disable HDCP. Use a USB 3.0 port whenever possible to ensure bandwidth and resolution. The capture card works through video decoding, which introduces millisecond-level latency, and different video formats (MJPEG, YUY2) support different resolutions. Signal loss may occur if the device disconnects; reconnect or restore default settings. To check if the capture card is functioning properly, connect the USB port to a computer or tablet and open your capture software to confirm detection
Full Specifications
| Brand | Guermok |
|---|---|
| Platform | Android, Meta Quest, Nintendo Switch, PlayStation 4, PlayStation 5, Steam Deck, Windows, Windows 11, Xbox, Xbox One, iOS |
| AV Output | MPEG-4, YUY2 |
| Model Name | GM-77B-Black |
| Tuner Type | ATSC |
| Unit Count | 1 Count |
| Connectivity | USB-C |
| Model Number | GM-77B-Black |
| Compatibility | PC, PS5, Switch, Android, Mac, Linux |
| Built-In Media | Installation Guide, USBC to USBA Adapter, Video Capture Card |
| Item Dimensions | 9.13 x 1.02 x 0.24 inches |
| Mfr Part Number | GM-77B-Black |
| Antenna Location | Game Streaming, Image Capture, Live Streaming, Video Recording |
| Compatible Devices | Gaming Console, Laptop, Quest 3/3S, Switch 2/1, iphone |
| Hardware Interface | USB 3.0 |
| Video Capture Resolution | 1080p, 4K |
| Recommended Uses For Product | Game Streaming, Image Capture, Live Streaming, Video Recording |
| Other Special Features of the Product | Hdmi Input, PD 100W Power Input, 4K HDMI Video Capture, Plug And Play, Usb 3.0 |
| Full listing title | Guermok 4K USB 3.0 HDMI Capture Card for Streaming with PD 100W, 4K@60FPS | 2K@120FPS HDMI to USB C/A Capture Card for Streaming, Works with Pad, Tablet, MacOS, Switch2/1, Laptop, PC, Camera, VR, Black |
Ready to buy?
Guermok 4K USB 3.0 HDMI Capture Card for Streaming with PD 100W, 4K@60FPS | 2K@120FPS HDMI to USB C/A Capture Card for Streaming, Works with Pad, Tablet, MacOS, Switch2/1, Laptop, PC, Camera, VR, Black is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.
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