The Hollyland Syscom 421 is a professional 4‑channel wireless video system designed for multi-camera productions. This complete kit includes one 4‑channel receiver with 4 x HDMI and 4 x SDI outputs, plus LAN, RS422/485 and USB‑A for control and integration. Four matching transmitters each offer HDMI and SDI inputs, with USB‑C, RS422/485, LAN and built‑in tally support for seamless studio and OB workflows. The package ships with a receiver PSU, D‑Tap adapters for the transmitters, extensive antenna sets, articulating arms, tally lights and cabling, along with a USB‑to‑GPI adapter and an interface lead for Blackmagic GPI & Tally integration. RS422/485 break‑out cables are also provided for flexible control wiring. Engineered for reliable multi‑channel transmission, the Syscom 421 streamlines live switching, on‑set monitoring and event coverage, reducing cable runs and setup time while maintaining robust, low‑latency links. Ideal for studios, live events, houses of worship and broadcast environments needing coordinated multi-cam wireless with integrated tally and control.
Includes
- 4‑channel receiver (4 x HDMI, 4 x SDI, LAN, RS422/485, USB‑A)
- 4 x transmitters (HDMI, SDI, USB‑C, RS422/485, LAN, tally)
- Power supply for receiver
- 4 x D‑Tap adapters for transmitters
- 25 x antennas
- 4 x articulating arms for transmitters
- 4 x tally lights
- 4 x 3.5 mm to 3.5 mm cables for tally lights
- USB to GPI adapter for tally
- Adapter cable for GPI adapter to Blackmagic GPI & Tally Interface
- 4 x RS422/485 cables with open ends
STAGE22.4.100.999