USB 3.1

Ultra-low latency

Video capture box

with Audio mixer

4K60 HDR HDMI Pass-through

USB 3.1

5Gbps data

Stable & Reliable

Ultra-low Latency
HDR Game view

Uldra-U3M is what you need for near-zero latency HDR quality game view. You can easily play games without lag.

  • Ultra-low Latency
    Headset Commentary
  • Audio Mixer
    with Volume Control
  • Ultra-low Latency
    Console Party Chat

Uldra-U3M can let you adjust HDMI audio, near-zero latency mic-in voice and group party chat independently by volume control panel in real time.

no limitations

Uldra-U3M plug & play UVC driver offers best compatibility to support most common streaming softwares in the market.

Pirect Capture X3

Hardware Specifications

Model Pirect Uldra-U3M "Unicorn"
Interface USB 3. 1 (Gen 1) Type-A connection
Input HDMI 2.0 (video & audio), Audio line-in, Mic-in
Output HDMI 2.0 (video & audio), Audio line-in bypass, Mic-in bypass
HDMI pass-through resolution Same as input, up to 4K 2160p60 (Supports HDR10)
Supported input resolution
 4K 2160p24/30/50/60 , 1080p24/50/60, 1080i50/60, 720p50/60, 576p50, 480p60 (4K signal supports HDR10)
Capture / Streaming resolution Up to 1920 x 1080@60fps ((Supports HDR10)
PC device driver type Standard plug & play UVC driver (Supports Windows 8.1 & 10, macOS 10.14 or later version)
Audio control Audio mixer with volume control panel
Video format Supports YUY2 / MJPEG video format  
Capture encoding type Software codec
Compatible Software OBS, Streamlabs OBS, XSplit, Wirecast, Vmix, etc.
Dimensions & weight 138 x 70 x 40 mm , 160 g /  5.43 x 2.76 x 1.58 in,  5.64 oz
In the box Uldra-U3M "Unicorn", Software CD, Quick start guide, USB 3.1 cable, 3.5mm 4-pin audio cable, PC microphone conversion cable, Power adapter and power cable

Note: 1) HDCP content cannot be previewed and recorded. 
         2) 4K24/30/50/60 input signal will be converted to 1080p24/30/50/60 signal.
         3) 4K HDR signal will be converted to 1080p HDR signal.
         4) 1080i50/60 input signal will be converted to 1080p25/30 signal.
         5) 480p60 supports 720x480 resolution only.
         6) USB 2.0 is not supported.

Product version information:

Product with S/N format: PRU3M2020xxxxx does not support HDR.
Product with S/N format: PRU3MHDRxxxxxxxx supports HDR.

Software Specifications

Model Pirect Capture X3
OS supported Windows 10 64-bit
GPU acceleration Intel / nVidia / AMD GPU supported
Supported video format YUY2 
Encoding codec H.264
Recorded file format MPEG 4 (h.264 + AAC)
Recording video resolution 1920 x 1080 (1080p 16:9)
1280 x 720 (720p 16:9)
854 x 480 (480p 16:9)
640 x 480 (480p 4:3)
640 x 360 (360p 16:9)
480 x 360 (360p 4:3)
Recording video bit rate 1, 2, 4, 8, 12, 16, 24 Mbps
Recording frame rate 24, 25, 30, 50, 60 fps
Recording duration unlimited, by duration
Recording audio bit rate 96, 128, 192, 256 kbps
Recording audio sampling rate 48 Khz
Software auto update supported

Suggested system requirement  (For 1080p60 recording / streaming)

- Intel® Core™ i5-7600 3.50 GHz or above
- 8 GB memory recommended
- NVIDIA® GT 1030 or above

- Intel® Core™ i5-8365U 1.60 GHz or above
- 8 GB memory recommended
- NVIDIA® MX250 or above

Frequently Asked Questions

Yes, Uldra-U3M supports most common third party live streaming software such as OBS, Streamlabs OBS, XSplit, Vmix, Wirecast, etc.
Yes, you can choose MJPEG or YUY2 on third party software. For Pirect Capture X3 software, only YUY2 is used.
Latency is near zero. Average Latency is around 0.05 sec.
No latency on HDMI Pass-through output.
HDMI audio, mic-in audio and line-in audio can be adjusted independently by volume control buttons in real time, then all audios is mixed and send to PC via USB 3.1.