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Small black aluminium capture box with HDMI in and out, USB 3.0 cable, 3.5 mm mic and headphone jacks

ESTONE

ESTONE OZC3B 4K HDMI USB 3.0 Video Capturing Device Black

SKU CH-ZXM6-31SA7

Captures 4K HDMI input at 60 Hz and records 1080p 60 fps via USB 3.0 with zero-lag loop-out and 3.5 mm audio I/O

  • InterfaceUSB 3.0
  • Resolution Support4K
  • Camera ResolutionUp to 4K Video
  • ColorBlack
  • HDMI1 Input/1 Output
  • USB Port1
  • Records 1080p 60fps via USB 3.0 for smooth streaming
  • HDMI loop-out passes 4K 60fps to a monitor with no delay
  • 5 mm microphone input adds live commentary to recordings
  • 5 mm audio output lets you monitor sound through headphones
  • Plug-and-play design works instantly without driver installation

4K HDMI USB 3.0 Capture Card

This ESTONE OZC3B capture device accepts HDMI input up to 4K at 60 Hz and records at 1080p 60 fps over USB 3.0. It is built for streamers and creators who need a simple way to bring console or camera footage into a PC for live broadcasting or recording. The aluminium alloy body keeps the unit compact and cool during sessions.

Sustained capture with loop-out and audio

The HDMI loop-out passes the source signal to a monitor at 4K 60 fps without added latency while the USB stream continues recording. A 3.5 mm microphone input and a 3.5 mm headphone output handle commentary and monitoring in one chain. Driver-free operation on Windows, macOS and Linux means the device stays stable during long streams without software overhead.

Upgrades basic USB 2.0 grabbers

The USB 3.0 bandwidth removes the compression artefacts and frame drops common with older capture dongles. Hardware loop-out eliminates the need for a separate splitter when playing on a TV while streaming. Buyers who require 4K60 recording or multi-channel audio mixing will need a higher-tier capture box.

Highlights

  • Records 1080p 60fps via USB 3.0 for smooth streaming
  • HDMI loop-out passes 4K 60fps to a monitor with no delay
  • 5 mm microphone input adds live commentary to recordings
  • 5 mm audio output lets you monitor sound through headphones
  • Plug-and-play design works instantly without driver installation

Specifications

BrandESTONE
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 ESTONE OZC3B run hot or draw much power during long capture sessions?

The aluminium alloy body acts as a passive heatsink and the USB 3.0 bus supplies all power, so the device stays cool and silent during extended use.

What cables or ports must my computer already have to use this capture card?

You need a free USB 3.0 port and an HDMI source; the box includes the USB 3.0 cable and the unit provides both HDMI input and loop-out.

Will the ESTONE OZC3B work with my older 1080p60 camera and headset?

Yes — it accepts HDMI up to 4K60 and down-scales to 1080p60 for recording, while the 3.5 mm mic and headphone jacks connect legacy analogue audio gear directly.

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