Unlimited Station Time. Uncompromising Power. The CZI TK4 is a professional-grade tethered power system engineered for the DJI Matrice 400. Delivering continuous AC-to-DC power through a high-performance tether cable, the TK4 eliminates battery constraints and keeps your Matrice 400 airborne for extended mission durations — enabling persistent surveillance, long-duration inspection, and continuous public safety operations without interruption. Continuous Tethered Power for the Matrice 400 The TK4 converts AC ground power into high-voltage DC and transmits it to the aircraft through a robust tether cable, providing stable, uninterrupted power delivery throughout the flight envelope. Automatic cable tension control and a built-in management system handle the tether safely — keeping the aircraft free to maneuver within its operational radius. Field-Ready. Mission-Portable. Designed for rapid field deployment, the TK4 is built for the demands of professional operations where downtime is not an option. Its rugged construction and portable form factor make it equally at home at a fixed command post or a mobile forward operating position. Built for Professional Operations Compatible with DJI Matrice 400 Series Continuous AC-to-DC tether power — no battery swap required Automatic cable tension control and tether management Rugged, field-ready construction for outdoor deployment Ideal for persistent surveillance, infrastructure inspection, public safety, and defense Portable design for fixed or mobile deployment scenarios When your mission can’t wait for a battery swap, the TK4 keeps your Matrice 400 on station — powered, stable, and ready.
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