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Small black USB 3.0 capture dongle with HDMI in and out ports

Jansicotek

Jansicotek OZC3B USB 3.0 4K 1080P 60FPS video capturing device

SKU CH-25RB-Y9P6A

Captures 4K HDMI video at 60 FPS and 1080p at 60 FPS over USB 3.0 with zero-latency loop-out, plug-and-play on Windows, Mac and Linux

  • InterfaceUSB 3.0
  • Resolution Support4K
  • Camera ResolutionUp to 4K Video
  • ColorBlack
  • HDMI1 Input/1 Output
  • USB Port1
  • Capture 1080p gameplay at 60 FPS for smooth streams
  • USB 3.0 interface delivers fast data transfer to PC
  • Zero-latency HDMI loop-out lets you play while recording
  • Driver-free setup works on Windows 7, 8.1, 10, Linux and Mac
  • Records 48 KHz PCM audio alongside video for clear sound

What this capture device does

The Jansicotek OZC3B is a USB 3.0 video capture dongle that accepts one HDMI input and passes a second HDMI output through with no added latency. It records or streams at up to 4K resolution and 1080p at 60 frames per second, sending both video and audio to a host computer. The unit is aimed at streamers, educators and anyone needing a portable way to bring an HDMI source into OBS, VLC or similar software on Windows, Linux or macOS.

When to add it to your setup

This card replaces a basic USB 2.0 grabber or a software-only screen capture when you need 60 fps at 1080p and a zero-lag loop-out for a local monitor. The jump is worth it if your current workflow drops frames, introduces noticeable delay or lacks a pass-through port for real-time play. It also adds a dedicated microphone input for live commentary without routing audio through the HDMI source.

Limits of the USB 3.0 interface

The device relies on the USB 3.0 bus for bandwidth, so sustained 4K capture depends on the host controller and cable quality. Only two capture rods can operate simultaneously on one PC, and some Windows 7 installations still require a driver install despite the general plug-and-play claim. Firmware upgrades are delivered online to improve compatibility, but the 48 kHz PCM audio sampling rate and MJPEG or YUY2 video formats are fixed by the UAC and UVC implementation.

Highlights

  • Capture 1080p gameplay at 60 FPS for smooth streams
  • USB 3.0 interface delivers fast data transfer to PC
  • Zero-latency HDMI loop-out lets you play while recording
  • Driver-free setup works on Windows 7, 8.1, 10, Linux and Mac
  • Records 48 KHz PCM audio alongside video for clear sound

Specifications

BrandJansicotek
SeriesOZC3B
ModelOZC3B
InterfaceUSB 3.0
Resolution Support4K
Camera ResolutionUp to 4K Video
ColorBlack
HDMI1 Input/1 Output
USB Port1
Option4K

Questions about this item

Does the Jansicotek OZC3B need an external power adapter or does it draw power from the USB 3.0 port?

The device is powered directly from the USB 3.0 connection; no separate power adapter is required.

How do I connect the capture card to my PC and get video into OBS without installing extra drivers?

Plug the HDMI source into the input, connect the USB 3.0 cable to the computer, then add a Video Capture Device source in OBS — the UVC/UAC implementation makes it appear as a standard webcam on Windows 7, 8.1, 10, Linux and macOS.

If the firmware needs updating later, how is that done and what does it improve?

Firmware upgrades are applied over the same USB 3.0 link using the manufacturer's tool; updates enhance compatibility with new operating-system releases and input devices.

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