ATEN StreamLive™ Pro All-in-One Multi-Channel AV Mixer

UC9040

All-in-one design to simplify streaming workflow – Integrates 1080p video capture, video recorder, video switch, streaming encoder, video converter, video splitter, and audio mixer
Professional-quality live streaming everywhere – Compatible with every major platform and can livestream to two platforms at the same time from virtually anywhere
Intuitive and powerful app OnAir – allows for preset up to 8 scenes with custom video layout, preview and full screen program monitoring, real-time editing, transitions in stunning DVE, PbP or PiP visual effects, and graphic and text overlays for a professional finish
Compact mixer control panel – Switching & mix between multiple video & audio sources with the help of easily identifiable luminous keys

The ATEN StreamLive Pro UC9040 is a powerful all-in-one multi-channel AV mixer designed to simplify professional live streaming and video production. Combining video capture, recording, switching, streaming, conversion, 4K video splitting, and audio mixing into a single compact device, it eliminates the need for multiple pieces of AV equipment while delivering a seamless production workflow.

Built for content creators, businesses, educators, event organizers, and live broadcasters, the ATEN StreamLive Pro UC9040 supports Full HD 1080p live streaming to popular CDN platforms including YouTube Live, Facebook Live, and Twitch. Its intuitive hardware controls allow users to manage live productions without requiring a PC or complicated broadcasting software.

The ATEN OnAir App, available for supported Android, Windows devices, and iPad, provides complete control over your production. Users can monitor video feeds, customize layouts, manage Picture-in-Picture (PiP) and Picture-by-Picture (PbP) modes, apply dynamic DVE transitions, and adjust audio settings with an intuitive touch interface. Eight built-in transition effects help create professional-quality broadcasts with minimal effort.

For enterprise collaboration, the ATEN StreamLive Pro UC9040 works seamlessly with ATEN Stream to USB software, enabling live streams to be converted into USB webcam signals for platforms such as Zoom, Microsoft Teams, Skype, OBS Studio, and other conferencing or streaming applications. Operators can also monitor multiple StreamLive Pro devices from a centralized media pool and assign each stream to its intended destination.

When using iPhone or iPad cameras, the ATEN OnAir Cam App provides a clean 1080p @ 60 Hz HDMI video feed without distracting interface elements or overlays, significantly improving production quality for professional live streaming and video recording.

Key Features

All-in-one AV mixer combining video capture, switching, recording, streaming, conversion, and audio mixing
Supports Full HD 1080p live streaming with professional-quality output
Streams directly to YouTube Live, Facebook Live, Twitch, and other CDN platforms
PC-free operation with intuitive onboard controls
Compatible with the ATEN OnAir App for remote production and layout management
Supports PiP, PbP, DVE effects, and eight professional transition styles
Works with ATEN Stream to USB for Zoom, Microsoft Teams, Skype, and OBS integration
Supports clean HDMI camera output from iPhone and iPad using ATEN OnAir Cam
Integrated 4K video splitter and advanced audio mixer for complete production control
Portable, compact design for studios, events, classrooms, conferences, and mobile broadcasting
Ideal for content creators, enterprises, educators, live event production, and professional streaming environments

Video Input
Interfaces	1 x 4K HDMI Type-A Female (up to 2160p60, unencrypted) 3 x HDMI Type-A Female (up to 1080p60, switcher, unencrypted )
Video Output
Interfaces	1 x 4K Loop-Thru HDMI Type-A Female (up to 2160p60, unencrypted) 1 x PGM HDMI Type-A Female (up to 1080p60, unencrypted)
Video Sampling	4:2:2 8-bit
Color Space	4:2:2 YUV
Video Resolution	HDMI 1 Input: VGA(640×480@60), 480p60/50/30/25, SVGA(800×600@60), XGA(1024×768@60), 720p60/50/30/25, SXGA(1280×1024@60), WXGA+(1440×900@60), UXGA(1600×1200@60 RB), WUXGA+(1680×1050@60), 1080p60/50/30/25, 2160p60/50/30/25 HDMI 2/3/4 Input: VGA(640×480@60), 480p60/50/30/25, SVGA(800×600@60), XGA(1024×768@60), 720p60/50/30/25, SXGA(1280×1024@60), WXGA+(1440×900@60), UXGA(1600×1200@60 RB), 1080p60/50/30/25 SRC/PGM HDMI Output: 480p60/50/30/25, 576p60/50/30/25, 720p60/50/30/25, 1080p60/50/30/25 HDMI Loop-Through Output: VGA(640×480@60), 480p60/50/30/25, SVGA(800×600@60), XGA(1024×768@60), 720p60/50/30/25, SXGA(1280×1024@60), WXGA+(1440×900@60), UXGA(1600×1200@60 RB), WUXGA+(1680×1050@60), 1080p60/50/30/25, 2160p60/50/30/25
Audio Inputs
Interfaces	HDMI captured inputs (stereo) 2 x 1/4″ TRS jack (dual mono)
Audio Outputs
Interfaces	HDMI outputs (stereo) 1x 1/8″ TRS jack (stereo)
Network Protocol	Dual-stream encoder supports direct live streaming to CDN server over ethernet using Real Time Messaging Protocol (RTMP/RTMPS) ——————————————————- Video Encoding Format: H.264 Bit rate: 512Kbps~10Mbps Color Format: YUV420 Resolution: 1080p30/25, 720p60/50/30/25, 480p60/50/30/25 ——————————————————————- Audio Encoding Format: AAC Sampling rate: 48kHz Bit rate: 128kbps
Recording Storage	Max. video resolution: 1080p30/25 File format：MP4 Support media: USB 3.x compatible mobile drive (HDD / SSD), at least 32GB of free space
Connection	2x USB 3.1 Gen1 Type-A Female (blue) 1x USB Type-C 1x GbE LAN port
Environmental
Operating Temperature	0 – 40 ºC
Storage Temperature	-20 – 60 ºC
Humidity	0 – 80% RH, Non-Condensing
OS Support	System requirements for iPads: • iPad Pro (3rd gen or later) with iOS 11 and above The following iPad with iOS 11 and above (Additional Apple Lightning USB 3 Adapter is required): • iPad Pro (1st and 2nd gen) • iPad (5th gen or later) • iPad Air (3rd gen or later) • iPad Mini (5th gen or later) • OnAir App for iPadOS from Apple App Store System requirements for Android tablets: • Android 9 and above • Octa-Core ARM Cortex grade CPU and above • Minimum 2.75GB system RAM • OnAir App for Android from Google Play Store System requirements for Chromebook: • Chromebook with Android APP support • OnAir App for Android from Google Play Store System requirements for Windows PC: • A PC with Windows 10 version 17763.0 or higher, 32/64-bit • CPU: Intel® i3 Dual Core 2.8Ghz or higher • RAM: 4GB or more • OnAir App for Windows from Windows Store • UC9040 with Firmware Ver.1.3.124 and above is also required
Power
Maximum Input Power Rating	DC12V, 7.5A
Power Consumption	DC12V:17.37W:184BTU/h Note: ● The measurement in Watts indicates the typical power consumption of the device with no external loading. ● The measurement in BTU/h indicates the power consumption of the device when it is fully loaded.
Physical Properties
Housing	Metal
Weight	1.85 kg ( 4.07 lb )
Dimensions (L x W x H)	28.85 x 18.99 x 9.66 cm (11.36 x 7.48 x 3.8 in.)
Note	For some of rack mount products, please note that the standard physical dimensions of WxDxH are expressed using a LxWxH format.