CZI is one of the established names in airborne delivery, and the TH4 V3 is its drop system for the Matrice 300, 350 and 400. Here is what it does and where it fits.
What CZII builds
CZI builds airborne delivery hardware for the DJI enterprise fleet. We carry the TH4 V3 throwing hook drop system for the Matrice 300, 350 and 400.
What we stock
Our catalog carries one item at $1,199 right now. Every listing below links to the live product page, where the current price and availability are shown.
| Item | What it is | Price |
|---|---|---|
| CZI TH4 V3 Throwing Hook Drop System for M300/M350/M400 | Drop system | $1,199 |
How to choose
- Mount matters more than brand: this unit is listed for the M300, M350 and M400 SkyPort family, so confirm your airframe before ordering.
- A drop system hangs below the aircraft and changes how it handles — budget flight time and a practice flight before the first real release.
- Check that the operation's waiver and local rules cover what you intend to release, and where, before the hardware ships.
How this guide was built
Every item, specification and price here is taken from the live listing in our own catalog on November 15, 2026. We have not tested these units ourselves, so figures are as the manufacturer publishes them, and an item that is out of stock today still appears with its current availability on the product page.
