KBDFans Topre to MX Stem Adapter

These adapters are designed for standard Topre-switch keyboards, such as the Realforce or HHKB series. However, they are not compatible with Topre-style switches that have different housing structures, so verify your specific model before purchasing.

Yes, adding an adapter introduces a slight change to the typing experience. Because you are adding a physical layer between the switch and the keycap, you may notice a slightly firmer bottom-out feel or a subtle change in the acoustic profile of your board.

These adapters are compatible with the vast majority of Cherry MX-style keycaps. Keep in mind that some keycap profiles, particularly those with very thick walls or specific internal designs, may have clearance issues with the Topre housing.

No special tools are required for installation. You can simply remove your existing Topre keycaps and press the adapters onto the Topre stems by hand, then mount your MX keycaps on top.

The different sizes are necessary to accommodate the various key widths found on a standard keyboard layout. While 1u stems cover your standard alphanumeric keys, the 1.5u and 2u stems are essential for supporting larger keys like the backspace, enter, or shift keys.

Yes, POM (polyoxymethylene) is an excellent material for this application. It is known for its high rigidity, low friction, and wear resistance, ensuring the adapters maintain a secure fit even after repeated keycap changes.