- Stock: Out Of Stock
- Brand: Hollyland
- Model: Wireless Transmission
- SKU: HL-COSMO C1
Hollyland Cosmo C1 SDI/HDMI Wireless Video Transmission System
TX/RX Kit for 1080p60 up to 1000' LOS — AES-128 Encryption & ~40 ms Latency
Overview
The Hollyland Cosmo C1 SDI/HDMI Wireless Video Transmission System lets you transmit high-definition video up to 1080p60 over long distances up to 1000' (304.8 m) line-of-sight to a single receiver, enabling flexible monitoring and distribution for studio or field production.
Operating across the 5.1 to 5.9 GHz wireless range, the system leverages HEVC/H.265 for efficient transmission and delivers a low ~40 ms latency. To keep your feed secure, it supports AES-128 encryption to help prevent signal leakage.
The transmitter provides HDMI and SDI inputs plus an SDI loop-through, while the receiver offers HDMI out and dual SDI outputs. Both units feature bright OLED status displays and flexible power options via Sony L-series battery plates, DC, or USB-C, along with multiple mounting methods using a cold shoe and 1/4"-20 threads.
Key Features
Wireless TX/RX Transmission Kit
Professional transmitter/receiver set for flexible monitoring and distribution.
TX: HDMI/SDI Input + SDI Loop Out
Transmitter includes HDMI in, 3G-SDI in, and 3G-SDI loop output.
RX: HDMI + Dual SDI Outputs
Receiver provides HDMI out plus 2× 3G-SDI outputs for multi-monitor workflows.
1080p60 up to 1000' LOS
Transmits up to 1080p60 with a 1000' line-of-sight range.
AES-128 Encryption, ~40 ms Latency
Secure transmission with AES-128 and low latency of about 40 ms.
OLED Screen + USB-C Power Input
Clear OLED status display and USB Type-C power input on both units.
L-Series Battery Plates on TX/RX
Power via Sony L-series, DC 6–16V, or USB-C 5V/2A.
Multiple Mounting + Quiet Auto Fan
Mount via cold shoe or 1/4"-20; auto fan adjusts with temperature for quiet operation.
Technical Specifications – Core
1080p up to 60 fps
1000' / 304.8 m (Line-of-Sight)
5.1 to 5.9 GHz (US: 5.1 to 5.8 GHz)
40 ms
128-Bit AES
HEVC / H.265
9 W (TX/RX)
4.5 x 2.8 x 1.3" / 115 x 70 x 32 mm
TX: 7.55 oz / 214 g | RX: 7.41 oz / 210 g
Inputs & Outputs (I/O)
1× BNC (3G-SDI) Input
1× HDMI Input
1× BNC (3G-SDI) Loop Output
2× BNC (3G-SDI) Output
1× HDMI Output
HDMI/SDI: 2-Channel
TX/RX: 2× RP-SMA Male
TX/RX: 1× USB-C (5 VDC / 2 A) Input
TX/RX: 1× USB-C 3.0 / 3.1 / 3.2 Gen 1 Input
Studio and field production, live streaming setups, director/DIT monitoring, and multi-monitor SDI workflows that require long-range, low-latency, encrypted 1080p transmission.