Product Description

Bambu Lab 4-pin/6-pin Connection Board for A2L is an original Bambu Lab expansion/connection board designed for the safe interconnection of 4-pin and 6-pin Bambu Bus cables in setups with A2L accessories (e.g., AMS / filament buffer / AMS hub). The board ensures transmission of 24 V power and data communication between the printer and additional modules.

It is designed as a reliable spare part or supplement in cases where the original connection board has been damaged, or if you need a stable fixed connection between 4-pin and 6-pin interfaces without improvised reductions.

Key Features

• Original Bambu Lab part – full compatibility and long-term reliability.
• 4-pin / 6-pin Bambu Bus Connection – enables physical and electrical connection of 4-pin and 6-pin cables.
• Stable power and data transmission – designed for 24V power and the AMS/printer communication bus.
• Safe replacement for a damaged board – suitable for problems with AMS detection, filament buffer, or other modules.
• Compact design – small PCB, easily placeable in the cable route.
• Simple installation – connection via hot‑swap connectors, no soldering required.

Usage

The Connection Board is used wherever it is necessary to:

• convert a 4-pin connector from the printer / buffer to a 6-pin connector towards the AMS or another module,
• extend or repair existing connections between the printer and AMS/AMS Lite,
• replace the original board that was damaged (e.g., by overvoltage, short circuit, or mechanically),
• ensure a clean and solid connection without loose adapters and temporary cable solutions.

Compatibility

• designed for Bambu Lab systems using 4-pin and 6-pin Bambu Bus interfaces, especially in combination with A2L / AMS / AMS Lite / filament buffer / AMS hub,
• compatibility always depends on the specific configuration – we recommend verifying according to the printer and accessory documentation.

Package Contents (typically)

• 1× Bambu Lab 4-pin/6-pin Connection Board for A2L

(Cables and mounting materials are usually not included unless otherwise stated.)

Technical Parameters

User Benefits

• Minimization of printer downtime – quick replacement of a faulty board, printer and AMS can function in full range again.
• Clean and professional cabling – no makeshift reductions or DIY cables.
• Assurance of compatibility – use of an original Bambu Lab part instead of unverified copies.
• Suitable for service centers, companies, and demanding hobby users who want to have spare parts in stock.

Note: The specific installation procedure may vary depending on the printer and configuration. We always recommend following the manufacturer's official instructions and documentation.

Key Features:

• Original Bambu Lab connection board for connecting 4-pin and 6-pin Bambu Bus cables.
• Ensures safe transmission of 24V power and data communication between the printer and AMS/filament buffer.
• Suitable as a spare part if the original connection board is damaged.
• Easy installation – just plug in the connectors, no soldering needed.
• Compact dimensions allow for easy placement in the cable route.
• Ideal for expanding or modifying setups with A2L, AMS, AMS Lite, or AMS hub.