Holybro X650 Frame Kit
by Holybro

The Holybro X650 Frame Kit (V2) is a professional-grade, 650mm-class quadcopter chassis engineered as a robust development platform for commercial prototyping, academic robotics research, aerial mapping, and industrial inspection. Constructed primarily from high-strength twill carbon fiber and premium CNC-machined aluminum alloy, this frame balances structural rigidity with a lightweight profile. This specific variant is the standalone Frame Kit, providing custom builders and enterprise developers with a clean, high-end physical foundation to curate their own power systems, companion computers, and custom payloads without being tied to pre-selected electronics.

A defining feature of the X650 architecture is its folding arm mechanism. Utilizing heavy-duty, ultra-lightweight 20mm carbon fiber tube arms secured by newly designed aluminum folding connectors, the drone can be rapidly collapsed down for easy transport and field deployment without sacrificing structural integrity during high-load flight operations. The spacious central chassis consists of 2mm thick, 160x160mm top and bottom plates, creating an expansive electronics bay. It features a dedicated companion computer platform board pre-drilled with mounting holes tailored for popular edge-AI computing hardware such as the Raspberry Pi 4 and NVIDIA Jetson Nano, alongside native layouts for standard Pixhawk flight controller baseboards.

For payloads and power management, the frame features an isolated 120x128mm upper accessory/battery plate and a heavy-duty landing gear assembly built from reinforced 16mm and 10mm carbon fiber tubes with thickened, impact-resistant plastic tee joints. Slung underneath the core chassis is a dual 10mm diameter, 320mm long rod rail mounting system. This industry-standard rail layout is instantly compatible with a vast ecosystem of professional camera gimbals, depth sensors (such as the Intel RealSense series), mapping cameras, and specialized cargo-drop mechanisms.

Hardware Configuration Note: This product is the standalone Frame Kit (Frame Only). It does not include motors, electronic speed controllers (ESCs), a power distribution board, propellers, flight controllers, or telemetry radios. All propulsion and avionics components must be sourced and configured separately.

Technical Specifications

• Frame Classification: 650mm Class Folding Quadcopter Development Frame

• Motor-to-Motor Wheelbase: 650 mm

• Chassis Body Construction: Full Carbon Fiber Twill Top & Bottom Plates (160 mm x 160 mm, 2.0 mm thick)

• Arm Architecture: High-strength, ultra-lightweight 20 mm diameter carbon fiber tubes

• Arm Folding Mechanism: Heavy-duty quick-release aluminum alloy folding joint locks

• Landing Gear System: 16 mm vertical & 10 mm skid carbon fiber tubes with reinforced plastic tee connectors

• Payload & Battery Plate Dimensions: 120 mm x 128 mm carbon fiber mounting plate

• Sub-Chassis Platform Board: Pre-drilled for GPS mounts, Pixhawk baseboards, Raspberry Pi 4, and NVIDIA Jetson Nano

• Payload Rail Interface: Dual 10 mm diameter carbon rods, 320 mm longitudinal span

• Motor Mounting Compatibility: Universal 16 mm to 25 mm perimeter hole patterns (Supports professional heavy-lift motors)

• Propeller Form Factor Optimization: Designed for 15-inch to 16-inch propellers (e.g., standard 1555 carbon fiber props)

• Structural Maximum Takeoff Weight Limit: Up to 6,300g (At 70% throttle, dependent on final power plant configuration)

• Payload Capacity Potential: Up to 4.3 kg maximum structural load capacity (minus battery and propulsion weight)

What's Included

• 1 x Holybro X650 V2 Carbon Fiber Center Chassis Assembly (Top & Bottom Plates)

• 4 x 20mm High-Strength Carbon Fiber Tube Arms

• 4 x CNC-Machined Aluminum Foldable Arm Connector Assemblies

• 4 x Aluminum Motor Mounting Brackets

• 1 x Complete Carbon Fiber Landing Gear Kit (16mm/10mm tubes with reinforced plastic connectors)

• 1 x Payload Platform Board V2 (Companion Computer/GPS Mount Board)

• 1 x Upper Accessory & Battery Mounting Plate

• 2 x 10mm Diameter x 320mm Long Carbon Fiber Payload Rails

• 2 x Non-Slip Silicone Battery Isolation Pads

• 2 x Heavy-Duty Hook-and-Loop Battery Straps

• 1 x Complete Set of Assembly Fasteners, Hex Screws, Standoffs, and Manual Hand Tools