Guermok
Guermok 4K USB3.0 Video Capture Card with PD 100W
Bottom line: The Guermok 4K USB3.0 Video Capture Card with PD 100W ($30.99 on Amazon as of 2026-10-06): 4K@60FPS capture in MJPEG over USB 3.0; main trade-off: YUY2 limited to 4K@25Hz; XRGB tops out at 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@60FPS capture in MJPEG over USB 3.0
- ✓ High-refresh input: 1440p@144FPS and 1080p@240FPS
- ✓ PD 100W USB-C passthrough keeps a tablet or laptop host charged
- ✓ Driver-free with OBS, Streamlabs, Zoom, VLC, vMix and QuickTime
- ✓ Runs on Windows, macOS, Linux, Android 5.0+ and PadOS 17+; USB-A adapter included
Cons
- ✗ YUY2 limited to 4K@25Hz; XRGB tops out at 1080P@60Hz
- ✗ USB 2.0 ports cap capture at 1080P
- ✗ PD charging does not work through the included USB-A adapter
- ✗ PS5 capture needs HDCP disabled to avoid a black screen
Manufacturer description
The Guermok 4K USB3.0 Video Capture Card turns any HDMI source into a USB video feed for OBS Studio, Streamlabs, Zoom, VLC or QuickTime. It captures 4K at 60FPS in MJPEG. It also accepts high-refresh input up to 2560x1440 at 144FPS or 1920x1080 at 240FPS, so fast gameplay from a Switch 2, PC or camera stays smooth. What sets this capture card apart is its PD 100W USB-C charging passthrough. If you stream from a tablet, pad or USB-C laptop, you can keep that host device powered through long sessions while it runs your capture software. Charging only reaches the device on the capture side, not…
SpecPicks Verdict
SpecPicks scored Guermok 4K USB3.0 Video Capture Card 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
Can I use this capture card with an iPad or Android tablet?
Yes. It supports PadOS 17+ and Android 5.0+ through a USB-C connection and capture software. PD 100W passthrough can charge the tablet while it records, but only the capture-side device is charged, not the HDMI source.
Why is my capture stuck at 1080P?
USB 2.0 ports only support up to 1080P, so connect to a USB 3.0 or faster port. If a USB 3.0 port still shows 1080P, Guermok says to rotate the card's USB-C connector 180 degrees and reconnect.
Does it work with a PS5 or Nintendo Switch 2?
The listing names Switch 2 and Switch 1 as supported sources. For PS5, you have to disable HDCP in the console settings, or the capture will show a black screen.
Do I need to install drivers to use it?
No. It is plug and play. Connect the card and open capture or streaming software such as OBS Studio, Streamlabs, vMix, Zoom, VLC, PotPlayer or QuickTime, and it appears as a video source.
Can I play games on my TV through this card with no delay?
No. It only sends video one way, from HDMI to USB-C, and it is not meant for direct output to a monitor or TV. The card decodes video, which adds millisecond-level latency, so you view the feed through capture software.
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@144FPS & 1080P@240FPS】Handles high-frame-rate video input including 2560×1440@144FPS and 1920×1080@240FPS. 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-Silver |
| Tuner Type | ATSC |
| Unit Count | 1.0 Count |
| Connectivity | USB-C |
| Model Number | GM-77B-Silver |
| 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-Silver |
| Antenna Location | Game Streaming, Image Capture, Live Streaming, Video Recording |
| Compatible Devices | Gaming Console, Laptop, Quest 3/3S, Switch 2/1, iphone |
| Hardware Interface | HDMI, USB 3.0, USB 3.0 Type A, USB 3.0 Type C |
| 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 USB3.0 Video Capture Card with PD 100W, 4K@60FPS or 2K@144FPS HDMI to USB-A/C Capture Card for Streaming, Works with Pad, Tablet, MacOS, Switch2/1, Laptop, PC, Camera, VR, Silver |
Ready to buy?
Guermok 4K USB3.0 Video Capture Card with PD 100W, 4K@60FPS or 2K@144FPS HDMI to USB-A/C Capture Card for Streaming, Works with Pad, Tablet, MacOS, Switch2/1, Laptop, PC, Camera, VR, Silver 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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