This article covers YUNZII B87 ワイヤレスメカニカルキーボード ゲーミングキーボード BT5.0.

Overview

The YUNZII B87 Wireless Mechanical Keyboard is a compact 80% tenkeyless keyboard that offers tri-mode connectivity: Bluetooth 5.0, 2.4GHz wireless, and USB-C wired. It can connect up to five devices simultaneously and switch between them seamlessly. A 4000mAh battery provides long-lasting usage without frequent charging. The gasket mount structure with five layers of damping foam (PE sandwich foam, IXPE switch pad, PET sound foam, switch foam, silicone bottom pad) delivers a creamy, satisfying typing sound and feel. Hot-swappable sockets support both 3-pin and 5-pin switches, making customization easy. The keyboard comes with adorable bear-themed PBT dye-sublimation keycaps in MOA profile and per-key RGB backlighting with south-facing LEDs. Switches are YUNZII Milk V2 linear switches, pre-lubed at the factory for smooth keystrokes right out of the box. The chassis is made of high-quality ABS plastic, and a soft-touch wrist rest is included.

Connectivity & Compatibility

This keyboard supports Bluetooth 5.0, 2.4GHz wireless (with included dongle), and USB-C wired connections. It is compatible with Windows, Mac, Linux, iOS, and Android, so you can use it with PCs, tablets, and smartphones. In wired mode, it supports N-key rollover (NKRO) for full simultaneous key presses, while Bluetooth mode offers 6KRO. The keyboard is fully programmable via QMK and VIA firmware, allowing you to remap keys, create macros, and adjust lighting effects directly from a web browser. The 2.4GHz mode offers low-latency performance suitable for gaming. Battery life is practical: roughly two weeks with backlight off, and several days with RGB on, depending on usage. Bluetooth range is approximately 10 meters, allowing operation from across the room.

Product Info

The YUNZII B87 was released in late 2024 and is positioned as a mid-range wireless mechanical keyboard. It is available on Japanese online retailers for around ¥12,600, offering exceptional value given its feature set: gasket mount, hot-swap sockets, PBT keycaps, and QMK/VIA support. The package includes a matching wrist rest, USB-C cable, keycap puller, switch puller, and a 2.4GHz dongle. Warranty is typically one year. While it sits in the entry-to-mid tier, its build quality and customization options rival more expensive models. The gasket mount and five-layer damping are rare at this price point, providing a quiet yet tactile typing experience. Color options include pink, white, and black; this review covers the pink variant with Milk V2 switches.

Best Use Cases

  • Gamers: Tri-mode connectivity and NKRO support ensure responsive performance in FPS and rhythm games. Hot-swappable sockets let you swap in linear or tactile switches to match your preference. The 2.4GHz mode offers low latency for competitive play. RGB lighting adds to the gaming atmosphere.
  • Remote workers and programmers: The quiet gasket-mount typing experience and compact 80% layout save desk space. QMK/VIA customization lets you assign productivity shortcuts, and the large battery reduces charging interruptions. The included wrist rest improves ergonomics during long sessions.
  • Mac users: The keyboard works with Mac layout after remapping via VIA. Bluetooth connectivity keeps your desk cable-free. You can easily swap Command and Option keys. It's convenient for switching between multiple Apple devices.
  • Style-conscious users: The pink chassis with bear-themed PBT keycaps and RGB lighting creates a unique, cute desk setup. The included wrist rest matches the color scheme and adds comfort. Hot-swap capability allows further personalization with custom keycaps and switches.

Product Disclosure (Amazon)

  • Manufacturer: YUNZII
  • Seller: YUNZII Keyboard
  • Fulfilled by: Amazon
  • ASIN: B0F21DG4VF
  • Note: This article covers a manufacturer-made product based on Amazon listing details.