What are the most durable mechanical ortho keyboards on the market?

The KPrepublic CSTC40 is a 40% ortholinear, hot-swappable keyboard PCB with RGB underglow and Type-C connectivity. It supports VIA/VIAL remapping and comes with a 32K ROM. It is sold as a PCB-only option or in various kit configurations.

Keychron Q15 Max is a compact ortholinear, hotswap wireless mechanical keyboard with QMK support and Q15 Max QMK wireless customization. It uses Gateron Jupiter switches and ships with XDA dye-sub PBT keycaps. It connects over 2.4 GHz, Bluetooth 5.1, or Type-C wired and supports NKRO.

The ZSA ErgoDox EZ is a split ergonomic mechanical keyboard with an ortholinear columnar layout and a configurable thumb cluster. It supports hot-swappable switches and open-source QMK firmware, including NKRO. It suits people who want an ergonomic ortholinear keyboard they can reconfigure for work, programming, or advanced key remapping.

The KPRepublic BM40 is a 40% ortholinear mechanical keyboard PCB kit supporting QMK firmware and full hot-swap switch sockets. It supports MX stems, includes RGB switch LEDs and bottom RGB underglow LEDs, and uses a Type-C port. Kit variants are offered with default Gateron Standard Yellow switches and optional cabling or a brass plate, but a PCB-only option is also listed.