Overview
The STARTRC Osmo 360 Expansion Fixed Bracket is a Drone Mount Bracket designed for mounting action/360 cameras and accessories on DJI drones. Versions are available for DJI Mavic 3/4 Pro, Air 3/3S and Avata 2 (select the correct variant). The ring-style mount integrates with the drone fuselage and provides a 1/4 stud screw interface and a GoPro adapter for flexible top or bottom installation.
Key Features
- Included 1/4 stud screw connector and GoPro adapter for broad device compatibility (Osmo/GoPro/action cameras, searchlight and other devices with a 1/4 screw hole).
- Multi-position installation: supports upper or lower mounting to expand creative setups.
- Fuselage-integrated shape designed not to block the drone fill light or downward-looking sensors.
- Extended screw closure for stable fixation; soft cushion inside helps prevent scratches on the drone body.
- Supports light-sensitive payload release scenarios when used with a compatible airdrop thrower accessory (not included).
- Quick installation and removal with clear step-by-step instructions.
Specifications
| Brand | STARTRC |
| Brand Name (spec) | StartRC |
| Item No. | ST-1125160 |
| Product Type | Drone Mount Bracket |
| Compatible Drone Brand | DJI |
| Compatible Drone Model (spec) | DJI Air 3S |
| Compatibility (variants) | DJI Mavic 3/4 Pro/Air 3/3S/Avata 2 (select according to your drone) |
| Material | ABS |
| Color | Gray |
| Product Size | 88*31*100mm |
| Package Size | 102*32*93mm |
| Product Weight | 33g |
| Package Weight | 80g |
| Model Number (spec) | camera mount bracket |
| Origin | Mainland China |
| Hign-concerned Chemical | None |
| Package | Yes |
| Choice / semi_Choice | yes / yes |
| Notes | the drone and camera not include, only mount bracket |
What’s Included
- Multifunctional expansion bracket ×1
- Instruction manual ×1
- 1/4 stud screw ×1
- Silicone pad ×2
- Fixed screw ×1
- Thumb screws ×1
- GoPro adaptor ×1
Applications
- Mounting Osmo/GoPro/action cameras for FPV, panoramic and creative aerial footage.
- Attaching searchlights or fill lights for night flying and inspection.
- Payload scenarios such as remote delivery/airdrop when paired with a compatible thrower (not included).
Details

Multifunctional mounting bracket for drones, compatible with various models, supports multiple cameras and drop function.


The STARTRC Osmo 360 Expansion Fixed Bracket supports multiple action cameras with versatile mounting options, enabling top or bottom installation. It includes a 1/4 screw and GoPro adapter, compatible with accessories like lights, devices with 1/4 screw holes, and GoPro action cameras. The bracket offers broad functionality for diverse applications, enhancing drone usability with various camera setups.

Light-sensitive delivery function. Drone carries items with built-in lighting for advertising, baiting, gift dropping, wedding flowers, ring delivery, outdoor medical supplies rescue, and long-distance delivery scenarios.

1/4 stud screw connector for action cameras, GoPro, searchlight and similar devices.

Fuselage mount with screw closure and soft cushion ensures stable, scratch-free drone attachment.




Installation Instructions for STARTRC Osmo 360 Expansion Fixed Bracket: Position the bracket with LOGO facing forward and open the camera mount. Align the bracket's bottom hole with the drone's bottom light, then close the top cover. Tighten the fixed screws. Use 1/4 double-head screws with silicone pads, inserting them into the nut at the bracket’s top. Screw the device or GoPro adapter into the 1/4 screw and tighten securely. The guide includes five illustrated steps demonstrating proper attachment to a drone.

Disassembly guide for STARTRC Osmo 360 bracket with three steps.

STARTRC ST-1125160 gray ABS bracket, 33g, 88×31×100mm. Includes expansion bracket, manual, screws, silicone pads, fixed screw, thumb screws, and GoPro adaptor. Package: 102×32×93mm, 80g.


STARTRC Multi-Functional Fixed Bracket for Air 3, 93x102x32mm

STARTRC Air 3 multi-functional mounting bracket for drone accessories. Features include 1/4 thread interface, aluminum alloy construction, compact design, and compatibility with various devices like lights and cameras. Product dimensions: 78*32*100mm. Weight: 80g.
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