This article covers 高速トリガー SayoDevice O3C キーボード ホットスワップ対応ホール磁気リニアスイッチ ジオメトリ Dash OSU リズムゲーム用.

Overview

The SayoDevice O3C is a compact 3-key mini keyboard designed primarily for the rhythm game OSU!. It utilizes Hall-effect magnetic linear switches for fast and precise actuation, supporting an 8000 Hz polling rate for near-instantaneous response. A 0.95-inch IPS color screen and a customizable rotary knob provide at-a-glance information and intuitive control. Its small footprint makes it ideal for gamers who want a dedicated input device without taking up excessive desk space.

Connectivity & Compatibility

Connectivity is via USB-C, operating as a USB 2.0 device. It works with Windows PCs and laptops out of the box. If your system only has USB-A ports, you will need a USB-C to A adapter or cable (not included). The bottom of the unit features a cable routing groove for tidy cable management. The hot-swap socket supports any compatible Hall-effect magnetic switches, allowing you to customize the feel and actuation point to your liking.

Product Info

The SayoDevice O3C launched around 2023 and is available on Japanese online retailers for roughly ¥4,999. It sits in the entry-to-mid-tier segment, offering specialized hardware for rhythm game enthusiasts that a full-size keyboard cannot replicate. The package includes a USB-C cable and a switch puller tool. Warranty is typically 30 days for online retailers purchases, though terms may vary depending on the seller.

Best Use Cases

  • OSU! gamers: The three-key layout is tailored for OSU! gameplay, reducing accidental keystrokes and enabling faster, more accurate inputs.
  • Customization enthusiasts: Hot-swappable magnetic switches, a programmable screen, and a configurable knob let you fine-tune the keyboard to your preferences.
  • Travel and limited-space setups: Its ultra-compact design is easily portable, perfect for LAN parties, gaming cafes, or small desks.
  • Not suitable for general typing or games requiring many keys; it is a dedicated peripheral for specific use cases.

Product Disclosure (Amazon)

  • Manufacturer: BTXETUEL
  • Seller: Newhui
  • Fulfilled by: Amazon
  • ASIN: B0C3YYDY8R
  • Note: This article covers a manufacturer-made product based on Amazon listing details.