Hollyland COSMO C1 transmits video up to 1080p60 over a distance of up to 300 m with 40 ms latency. The transmitter accepts HDMI and 3G-SDI and has an SDI loop-out; the receiver offers two SDI outputs, HDMI and USB-C for UVC streaming.
Both units have a battery plate for Sony NP-F, so the set is quickly ready without extra cables. The USB-C output on the receiver allows direct transfer to a computer without a capture card.
Ideal for
Why Hollyland COSMO C1 SDI/HDMI (TX + RX)
- Two SDI outputs – The receiver feeds several monitors at once.
- USB-C streaming – Direct UVC input to a computer.
- NP-F power – Battery plates on both units.
- 300 m range – For direct visibility.
Key specs
| Type | Transmitter + receiver |
|---|---|
| Range | up to 300 m (1,000 ft, line of sight) |
| Latency | 40 ms |
| Max. resolution | 1080p60 |
| Inputs | TX: HDMI, 3G-SDI |
| Outputs | TX: 3G-SDI loop; RX: 2 × 3G-SDI, HDMI, USB-C (UVC) |
| Frequency band | 5.1–5.9 GHz |
| Power | 6–16 V DC, USB-C 5 V / 2 A, Sony NP-F plate |
| Weight | TX 214 g, RX 210 g |
Technical details
| Consumption | 9 W (each unit) |
|---|---|
| Dimensions | 115 × 70 × 32 mm |
| Streaming | USB-C UVC output on receiver |
Kit contents
| Kit contents | transmitter, receiver, 4 antennas, 2 mushroom antennas, shoe mount, pan/tilt mount, USB-C adapter, DC adapter |
|---|---|
| Battery plate | Sony L-series (NP-F) on both units |































