This article covers Razer Blackwidow JP Green Switch メカニカル ゲーミングキーボード 日本語配列 【日本正規代理店保証品】 RZ03-02860800-R3J1.

Overview

The Razer BlackWidow JP is a full-size mechanical gaming keyboard designed specifically for users who need a Japanese layout. It features Razer's clicky Green switches, offering a tactile bump and an audible click with every keystroke. The switches are rated for up to 80 million keystrokes, ensuring long-term durability. The keyboard includes per-key Razer Chroma RGB backlighting, allowing for extensive customization of lighting effects and colors. Onboard memory stores up to five profiles, so you can switch between game-specific configurations without software. Connectivity is via a wired USB cable, with cable routing options on the left, right, and top.

Connectivity & Compatibility

The BlackWidow JP connects solely through a USB Type-A cable; there is no wireless or Bluetooth option. It is primarily designed for Windows, with full support through Razer Synapse 3 for lighting, macro, and profile configuration. It also works on macOS for basic typing, but advanced customization is limited. The keyboard features full N-key rollover and anti-ghosting, ensuring every keypress is registered even during rapid multi-key combinations. The Japanese layout includes extra keys for kana and romaji input, making it ideal for Japanese typists.

Product Info

Released in 2019, the Razer BlackWidow JP remains available through major retailers like for around ¥12,000-13,000. It comes with a 2-year warranty and includes only the USB cable in the box; a wrist rest is sold separately. In the market, it sits as a mid-range mechanical keyboard, offering a balanced mix of build quality, customization, and tactile feedback. For those preferring a quieter experience, the variant with Razer Orange switches is worth considering.

Best Use Cases

FPS gamers: The tactile click of the Green switch provides satisfying feedback when firing, helping you time shots with confidence. The keyboard's high polling rate and ghosting protection ensure no missed inputs. Not ideal for shared or quiet spaces due to the loud switch noise. Writers and heavy typists: If you enjoy the classic clicky sound and tactile feel, this keyboard delivers a crisp typing experience. The Japanese layout with dedicated language keys makes Japanese input fluid and natural. Avoid if you work in a noise-sensitive environment. Enthusiasts who love RGB: With per-key Chroma lighting, you can create intricate light shows that sync with games or music. Onboard profile storage means your settings follow you even when you switch PCs. Not the best choice if you prefer a minimalistic, silent keyboard. Budget-conscious mechanical keyboard fans: At around ¥12,000, you get a proven Razer design with robust switches and great customization. However, if you need wireless capability or a compact form factor, look elsewhere.

Product Disclosure (Amazon)

  • Manufacturer: Razer(レイザー)
  • ASIN: B07QRGRRNW
  • Note: This article covers a manufacturer-made product based on Amazon listing details.