This article covers Keychron キーボード K15 Max 75% Aliceレイアウト QMKワイヤレス・カスタムメカニカルキーボード.

Overview

The Keychron K15 Max is an ultra-slim wireless mechanical keyboard featuring a 75% Alice layout. It uses low-profile Gateron Red switches that are 31% thinner than traditional mechanical switches, striking a balance between typing comfort and portability. The aluminum body and ABS keycaps give it a premium look that stands out on any desk. With a 1000Hz polling rate over 2.4GHz wireless, it delivers low-latency performance suitable for gaming. Bluetooth 5.1 allows seamless switching among up to three devices — great for multitasking between a PC, tablet, and smartphone. USB-C wired connectivity is also available for charging and data transmission. The keyboard is fully programmable via QMK firmware and the Keychron Launcher web app, including the rotary encoder knob. White LED backlighting ensures visibility in dim environments. Positioned as a mid-range offering in the Alice-layout market, the K15 Max is especially appealing to those curious about ergonomic split layouts.

Connectivity & Compatibility

The K15 Max supports three connection modes: 2.4GHz wireless (via USB dongle), Bluetooth 5.1 (up to three paired devices), and USB-C wired. Switching between modes is instantaneous. It works with Windows, macOS, iOS, and Android — a physical switch on the side lets you toggle between OS layouts. Be aware that the split Alice layout requires an adjustment period. Also, the keyboard's ultra-slim profile may not pair well with some thick wrist rests. The USB-C port is located on the left side, so cable routing should be planned accordingly.

Product Info

Released in late 2024, the K15 Max is priced around ¥19,910 ( Japan). The keyboard comes with a USB-C cable, 2.4GHz dongle, keycap puller, and spare keycaps. Warranty is typically one year from the manufacturer. It is available through and the Keychron official store. In the market, this keyboard sits in the entry-to-mid tier for split mechanical keyboards. It offers a unique combination of Alice layout and low-profile switches at a relatively accessible price point.

Best Use Cases

Ergonomic enthusiasts: The Alice layout can reduce wrist strain. The K15 Max is an affordable entry point to try a split design. However, expect a learning curve; those who dislike retraining muscle memory may prefer a standard layout. Multi‑device users: With Bluetooth 5.1, you can quickly switch among a desktop, laptop, and phone. Ideal for mixed workflows. But Bluetooth has slightly higher latency than 2.4GHz or wired, so competitive gamers should stick to the dongle or cable. Customization lovers: QMK firmware and the web launcher allow deep key remapping and macros. The knob is also programmable. Beginners might need to consult online guides, but the community is helpful. Travelers seeking mechanical feel: The ultra-slim profile makes it easy to slip into a backpack. However, the low-profile Gateron switches feel different from standard MX switches — try before you buy if possible.

Product Disclosure (Amazon)

  • Manufacturer: Keychron
  • Seller: Keychron Japan
  • Fulfilled by: Amazon
  • ASIN: B0DNFQJBM7
  • Note: This article covers a manufacturer-made product based on Amazon listing details.