Hollyland Cosmo C2 Wireless Video Transmitter

Hollyland Cosmo C2 Wireless Video Transmitter is designed for production crews that need a dedicated wireless video transmit point with both HDMI and SDI input support. Based on the source images, it includes HDMI 1.4b input, 3G-SDI input, 3G-SDI loopout, USB-C OTG, and SMA male antenna connections, making it practical for camera rigs, video assist, director monitoring, and live production workflows.

From a broadcast engineering standpoint, this is the camera-side transmit unit in the Cosmo C2 workflow. It operates across 5.15–5.85GHz, lists transmit power at <23dBm, uses 40MHz bandwidth, and shows latency at ≥33ms. The SDI loopout is a practical field feature, allowing a local SDI path while the transmitter sends the video feed wirelessly.

Highlights

• Wireless video transmitter for Cosmo C2 video transmission workflows
• HDMI 1.4b and 3G-SDI inputs for flexible camera and source connection
• 3G-SDI loopout supports local monitoring or downstream video routing
• 5.15–5.85GHz operation for wireless production video use
• Battery and DC power support for field and camera-side setups

Quick Specs & Uses

• Product type: Wireless video transmitter
• DC input: 2.0mm core socket
• HDMI input: HDMI 1.4b
• SDI input: 3G-SDI
• SDI loopout: 3G-SDI
• USB-C: USB 2.0 OTG
• Antenna: SMA male
• NP-F battery voltage range: 6.8V–8.4V
• DC voltage range: 6V–16V
• Power consumption: <10W
• Operating frequency: 5.15–5.85GHz
• Transmit power: <23dBm
• Receiver sensitivity: /
• Latency: ≥33ms
• Bandwidth: 40MHz
• Input/output format: HDMI/SDI input; SDI loopout
• Supported formats: 720p59.94/60, 1080i50/59.94/60, 1080p23.98/25/29.97/30, 1080p50/59.94/60

Why It Helps

On a production build, the transmitter needs to sit cleanly on the camera or source side without adding unnecessary cable clutter. The Cosmo C2 Wireless Video Transmitter gives crews both HDMI and SDI input options, so it can work with different camera and video source setups.

The SDI loopout is one of the more useful workflow details. It allows a local SDI feed to continue to another device while the transmitter handles the wireless send. That helps when a camera operator, focus puller, or video assist station still needs a hardwired path near the camera.

System Characteristics

• Camera-side wireless workflow supports clean video transmission from the source
• HDMI and SDI input support fits mixed production and camera environments
• SDI loopout path keeps local routing available while transmitting wirelessly
• NP-F and DC power support gives crews flexible field power options
• Included antennas and adapter support basic setup out of the box

What’s In The Box

• 1 x Cosmo C2 Wireless Video Transmitter
• 2 x Blade Antenna
• 1 x USB-C OTG Adapter
• 1 x Warranty Card
• 1 x User Manual
• 1 x Packing List Card

Trusted Seller

Coremicro ships fast from the U.S. and supports this gear with a team that works directly with production systems.