Hollyland Cosmo C2 HDMI/SDI Transmitter Set

The Hollyland Cosmo C2 HDMI/SDI Wireless Video Transmitter System lets you wirelessly transmit high-resolution video up to 1080p60 over long distances of up to 1000 meters, providing flexible video monitoring and distribution for your studio or location production. This kit consists of a transmitter and receiver that communicate over the 5.1 to 5.85 GHz wireless frequency range. Additional enhancements to the series include HEVO 2.0 technology, UVC/RTMP/NDI|HX streaming support, and expanded power options.

High signal strength, seamless frequency hopping

The Cosmo C2 can transmit 1080p60 video up to 1000 meters line-of-sight with a low latency of 33ms. The system operates on the 5GHz frequency band, automatically detecting surrounding frequency interference and seamlessly switching to a clear channel via HEVO 2.0 technology. This ensures an uninterrupted transmission signal.

Connectivity

The transmitter has one HDMI input, one SDI input and one SDI loop output.

The receiver has two HDMI outputs, two SDI outputs and an RJ45 Ethernet port.

The USB-C ports on all devices allow you to connect to the included USB-C OTG adapter and your PC for UVC streaming.

RTMP and NDI|HX streaming

The Cosmo C2 unlocks RTMP streaming for direct live streaming to YouTube, Twitch and other platforms. The receiver supports the NDI|HX protocol, allowing video streams to be sent over a single network cable.

FPS booster, fractional frame rate

Using a frame rate compensation algorithm, the Cosmo C2 receiver can convert low frame rate inputs such as 1080p24/25/30 to high frame rate 1080p60 outputs for smoother video. The Cosmo C2 can also transmit HDMI/SDI fractional frame rate input/output signals to ensure flexibility during filming.

Frozen frame

If your broadcast is interrupted, the Cosmo C2 can freeze the last frame of your feed so that the manufacturer's logo is not displayed. There is also an option to customize the logo image if you prefer to use a USB flash drive for a more professional look.

Versatile power and mounting options

Each unit can be powered via DC input using the included power supply while on set. For field applications or studio environments with limited electrical outlets, both units offer battery power options. The transmitter features an L-series battery plate and the receiver features a V-mount battery plate for higher capacity power sources. Use the 1/4"-20 threads on the units or the cold shoe adapter to attach them to your preferred mounting configurations.