3IDEE VESA Adapter 400x400

VESA Adapter 400x400 for TV and Monitor Mounts

This VESA Extension Kit expands existing VESA mounting patterns up to 400x400 mm. It is ideal when your monitor, TV, or mounting bracket is VESA-compatible, but the mounting hole pattern does not match the required mounting position.

Typical applications include VESA 200x200 to 400x400, VESA 200x200 to 300x300, VESA 300x300 to 400x400, and VESA 400x200 to 400x400. The extension rails allow you to continue using existing TV wall mounts or monitor mounts without having to purchase a completely new mounting bracket.

Which VESA sizes can be extended?

The set is designed for larger VESA mounting patterns and flexibly extends existing mounting points up to VESA 400x400. The decisive factor is always the distance between the threaded mounting holes, measured from center to center.

• • VESA 200x200 to 300x300: When a 200x200 mounting pattern needs to be extended to a larger mounting dimension.
• • VESA 200x200 to 400x400: The most important application when the mounting bracket or screen requires a 400x400 mounting pattern.
• • VESA 300x300 to 400x400: When an existing 300x300 mounting pattern needs to be extended to 400x400.
• • VESA 400x200 to 400x400: When a rectangular mounting pattern needs to be adapted to a square 400x400 dimension.

Not a traditional adapter plate, but flexible VESA extension rails

This product is not a solid VESA adapter plate, but a VESA adapter set with extension rails. Its function is comparable, however: the existing VESA mounting pattern is extended so that the screen and mounting bracket can be connected correctly.

This makes the set relevant for users searching for terms such as VESA 400x400 adapter plate, VESA 400x400 adapter, or TV wall mount adapter plate. What matters is not the physical shape of the adapter, but whether the required VESA mounting pattern is technically supported.

For TVs and monitors up to 55 inches

The 3IDEE VESA Extension Kit is designed for monitors and TVs up to 55 inches and supports loads of up to 30 kg. This makes it suitable for many TV wall mounts, monitor mounts, and setups where larger VESA dimensions are required.

The rails are made of powder-coated steel and are designed to provide a stable connection between the screen and mounting bracket. Before installation, always check that the screen weight, mounting bracket, screws, wall mounting or desk mounting system, and VESA mounting pattern are compatible with one another.

When is this VESA Extension Kit the right choice?

This set is the right choice if your monitor or TV already has VESA mounting holes, but they do not match the mounting pattern of your bracket. It changes or extends the VESA mounting pattern, but does not provide additional clearance from the back of the screen.

• • Right choice: Your TV or monitor has VESA 200x200, but your mounting bracket requires a larger mounting pattern.
• • Right choice: You want to extend VESA 200x200, 300x300, or 400x200 up to 400x400.
• • Right choice: You want to continue using an existing TV wall mount or monitor mount.
• • Not the right choice: Your monitor does not have any VESA mounting holes. In this case, you will need a model-specific VESA adapter.
• • Not the right choice: The mounting bracket does not sit properly because of a recessed or curved back. In this case, our guide to VESA spacers can help.

Installation: What should you pay attention to?

Before installation, measure the VESA dimensions of your screen and the mounting pattern of your bracket. Make sure that the rails fit mechanically, the screws engage securely, and the maximum load capacity is not exceeded.

• • Measure the VESA size: Measure the horizontal and vertical distance between the mounting holes from center to center.
• • Check the original dimensions: For example, 200x200, 300x300, or 400x200.
• • Check the target dimensions: This extension kit is designed for VESA mounting patterns up to 400x400 mm.
• • Observe the load capacity: The screen, extension rails, mounting bracket, and wall or desk mounting system must be compatible with one another.
• • Check the screws: The screws must engage securely and must not be screwed in too deeply.

Frequently Asked Questions About the VESA 400x400 Adapter