This article covers Keychron K3 ウルトラスリム 75%レイアウト ワイヤレス 有線メカニカルキーボード コンパクト 84キー RGB LED バックライト Mac Windows用 ロープロファイル Gateron G Pro Blue Switch バージョン2.

Overview

The Keychron K3 is an ultra-slim wireless mechanical keyboard featuring a 75% layout with 84 keys. Its low-profile Gateron G Pro Blue switches are approximately 40% thinner than traditional mechanical switches, housed in a sleek aluminum body that makes it one of the thinnest and lightest wireless mechanical keyboards on the market. With Bluetooth 5.1 connectivity supporting up to three devices and USB Type-C wired mode, it offers versatile compatibility for both Mac and Windows users. This keyboard is designed for those who want the tactile feel of a mechanical switch without sacrificing desk space or portability.

Key Features

75% Layout (84 keys): Compact design that retains all essential multimedia and function keys while reducing the footprint significantly. Ideal for users who need a full typing experience in a smaller space. Ultra-Slim Low-Profile Switches: Gateron G Pro Blue (clicky) switches provide a satisfying tactile bump and audible click, with a shorter travel distance that reduces finger fatigue during long typing sessions. Multi-Device Connectivity: Bluetooth 5.1 allows pairing with up to three devices (PC, Mac, tablet, smartphone) and seamless switching via dedicated keys. USB Type-C wired mode ensures low-latency connection when needed. 18 RGB Backlight Modes: Per-key RGB lighting with multiple effects and static color options enhances visibility in low-light environments and adds a customizable aesthetic. * Cross-Platform Compatibility: Comes with Mac-specific keycaps pre-installed and includes additional Windows keycaps. A side switch lets you toggle between macOS and Windows layouts instantly.

Connectivity & Compatibility

The Keychron K3 works with any device that supports Bluetooth HID profiles, including Windows PCs, Macs, iPads, iPhones, and Android devices. It connects via Bluetooth 5.1 (up to 3 devices) or USB Type-C wired mode. The included USB-A to USB-C cable allows direct connection to most computers. No additional drivers are required for basic functionality.

Product Info

Released in 2021, the Keychron K3 remains widely available. Pricing typically ranges from $70 to $90 USD (or equivalent in JPY). It comes with a 1-year manufacturer warranty. The package includes the keyboard, USB Type-C cable, keycap puller, extra Windows keycaps, and a user manual.

Best Use Cases

Space-Constrained Desks: The 75% layout saves significant desk space, making it perfect for gamers who need room for mouse movement or creative professionals with limited workspace. Multi-Platform Users: Ideal for those who switch between Mac and Windows computers daily, thanks to the dedicated OS toggle and included keycaps for both systems. * Portable Typing: Its lightweight aluminum build and slim profile make it easy to slip into a bag for use with laptops or tablets at cafes, co-working spaces, or while traveling.

Product Disclosure (Amazon)

  • Manufacturer: Keychron
  • Seller: WワールドマーケットW
  • Fulfilled by: WワールドマーケットW
  • ASIN: B08LYKWB5Q
  • Note: This article covers a manufacturer-made product based on Amazon listing details.