This article covers 3IDEE VESAアダプター VESAマウント MSI Optix モニター (MAG342CQR.

Overview

The 3IDEE VESA Adapter is a dedicated mounting plate designed to add VESA compatibility to selected MSI Optix monitors that lack standard VESA holes. By attaching this adapter, you can mount your monitor on any monitor arm or wall bracket that supports the 75x75mm VESA pattern. It's a practical solution for freeing up desk space and improving ergonomics, especially for users who already own one of the listed MSI monitors and want to switch from the bulky stock stand to a flexible arm.

Connectivity & Compatibility

The adapter attaches directly to the back of the monitor using the existing stand mounting points, providing a standard 75x75mm VESA interface. All necessary screws are included. Compatible monitor models are limited to: MSI Optix MAG342CQR MSI Optix MAG342CQRV MSI Optix MAG301CR2 MSI Optix AG321CQRDE * MSI Optix MAG342CQRVDE If your monitor model is not on this list, the adapter will not fit. The monitor arm or wall plate you intend to use must also have a 75x75mm VESA pattern. Installation is straightforward with a Phillips screwdriver.

Product Info

The adapter is sold exclusively on at a price of approximately ¥12,262. 3IDEE is a brand that specializes in VESA adapters for various monitor series, and this model is specifically tailored for MSI Optix displays. The package includes the adapter plate, screws, and a simple instruction sheet. No tool is required in addition to a standard screwdriver. Warranty details are listed on the product page. This product occupies a niche accessory market — it's not a mainstream necessity but an essential upgrade for users of these specific monitors who need mounting flexibility.

Best Use Cases

First, this adapter is perfect for owners of compatible MSI Optix monitors who want to mount their screen on an ergonomic arm to reclaim desk space. The stock stand is quite deep; switching to an arm can make the desk feel much roomier. Second, gamers and content creators who adjust monitor position frequently will benefit from the easy tilt, swivel, and height adjustments that a monitor arm provides. Third, users building a multi-monitor setup with identical models can align screens perfectly using VESA arms. However, if your monitor is not on the compatibility list, or if you're happy with the original stand, this product offers no advantage. Also, it's not meant for portable monitors or laptops — only full-sized desktop monitors from the listed series.