SY-XTREAM-C - 4K HDMI to USB-C capture & recorder device, 4K 60 HDR bypass, USB‑C streaming up to 4K 30, dual analogue audio inputs, integrated mixer, HDMI audio capture, fully UAC / UVC compliant, OBS compatibility

4K HDMI to USB-C capture & recorder device, 4K 60 HDR bypass, USB‑C streaming up to 4K 30, dual analogue audio inputs, integrated mixer, HDMI audio capture, fully UAC / UVC compliant, OBS compatibility

The SY-XTREAM-C is an HDMI capture device with USB-C output designed to record or stream video content up to 4K @ 30 Hz, while maintaining HDMI pass-through output up to 4K @ 60 Hz with HDR. In addition to embedded HDMI audio, the device can capture a second audio stream from the line input, MIC input, or a mix of the two using the built-in audio mixer.

Video timing stabilization technology ensures a stable USB stream even in the presence of intermittent HDMI signals or sudden disconnections. Compatibility with UAC / UVC standards ensures support for most streaming, video conferencing, and recording software, including OBS on Windows, macOS, and Linux.

The unit is powered directly via USB-C, eliminating the need for external power supplies, making it ideal for compact, portable, and professional setups.

Main features

• HDMI input and output with support for up to 4K @ 60 Hz with HDR bypass
• USB-C capture up to 4K @ 30 Hz with uncompressed LPCM 2.0 audio
• Automatic conversion of 4K sources with frame rates above 30 Hz to 4K @ 30 Hz for USB capture
• HDCP 2.2 and 1.x compliant (capture of protected content is not supported)
• Two additional analog audio inputs via 3.5 mm mini-jack: stereo line and microphone
• Built-in audio mixer to combine line and microphone inputs into a single stream
• HDMI audio capture (LPCM 2.0) as the primary stream and analog audio as the secondary stream
• UAC / UVC compatibility with most streaming and video conferencing software
• Support for OBS on Windows 10 (or later), macOS, and Linux
• Video timing stabilization function to ensure stable USB streaming even with high-frequency signals Intermittent signals
• Direct power supply via USB-C without an external power supply

User benefits

• Universal compatibility with streaming and video conferencing software thanks to UAC and UVC standards
• Built-in audio mixer to combine microphone and line inputs without the need for external hardware
• HDMI pass-through up to 4K @ 60 Hz with HDR for high-quality content monitoring while USB capture is at 4K @ 30 Hz
• Direct power supply via USB-C
• Video timing stabilization for a stable USB stream even with intermittent HDMI signals

Areas of use

• Live streaming in 4K @ 30Hz on platforms such as YouTube, Twitch, and Facebook Live
• Gameplay recording from consoles or PC
• Video production, tutorials, online courses, and training content
• Webinars, video conferences, and corporate presentations
• Mobile broadcasting, live events, and corporate installations
• AV content capture for editing, archiving, or digital distribution

Technical characteristics

Interfaces

• Input ports: 1 x HDMI (1 x HDMI uncompressed AV and data), 1 × 3.5 mm stereo mini‑jack (1 x analogue stereo L/R), 1 x 3.5 mm mini‑jack (microphone)
• Output ports: 1 x HDMI (bypass, uncompressed AV and data), 1 x USB‑C (USB‑C / Thunderbolt)

Video

• HDMI compliance: HDMI 2.0 (DVI 1.0)
• HDCP compliance: HDCP 2.2 bypass
• Input signal type: 4K @ 60 8‑bit YUV 4:4:4
• Output signal type: 4K @ 30 8‑bit YUV 4:4:4
• Max. input resolution: 4096 x 2160p @ 60 Hz
• Max. output resolution: 3840 x 2160p @ 60 Hz

Audio

• HDMI audio: LPCM (8 channels), bitstream, high‑bit‑rate bitstream
• Line IN: 1 V_RMS, S/N ratio > 80 dB (1 kHz @ 0 dBFS)

Power

• Power supply: USB powered
• Power consumption: 4.1283 W

Field firmware update

• PC

Enclosure

• Chassis material: metal (steel)
• Chassis colour: black
• Dimensions (W x H x D): 84 x 23 x 113 mm (case only)
• Dimensions (W x H x D): 84 x 23 x 128 mm (all inclusive)
• Weight: 307 g