This article covers Razer BlackWidow V4 ベアボーン75% ホットスワップ対応ゲーミングキーボードキット ホワイト.

Overview

The Razer BlackWidow V4 75% Barebones Hot-Swap Gaming Keyboard Kit White is designed for enthusiasts who want to build their keyboard from scratch. Switches and keycaps are not included, giving you the freedom to choose every component. The 75% layout saves desk space while retaining dedicated function and arrow keys. With a polling rate of up to 8000Hz, it delivers ultra-low latency input, ideal for competitive gaming.
The top case is made from 5052 aluminum alloy, offering a sturdy and premium feel. The keyboard features a gasket-mounted FR4 plate, tape-reinforced PCB, and dual-layer sound-dampening foam for a refined typing sound and feel. Per-key RGB lighting and two-side underglow via Razer Chroma allow for extensive visual customization.

Connectivity & Compatibility

The keyboard connects to your PC via a detachable USB-C to USB-A cable. It is compatible with both 3-pin and 5-pin mechanical switches, including popular brands like Cherry MX, Gateron, and Kailh. Keycaps must be MX-compatible. The PCB supports N-key rollover, antighosting, and Razer Snap Tap for rapid key re-press actions. You can customize settings and save up to five onboard profiles using Razer Synapse 4 software.

Product Info

Released in 2024, the BlackWidow V4 Barebones sits in the mid-to-high tier of customizable keyboards. It stands out by offering a premium build with gasket mount and foam damping, competing with other hot-swap barebone kits from brands like Keychron and Glorious. The package includes the keyboard chassis, USB cable, keycap and switch puller, and a manual. Warranty is two years from purchase. The retail price is around ¥28,000, but you'll need to budget extra for switches and keycaps, making the total cost typically between ¥35,000 and ¥45,000.

Best Use Cases

This keyboard is ideal for DIY enthusiasts who enjoy tailoring every aspect of their typing experience. The hot-swap socket lets you experiment with switch types and lubrication without soldering. The gasket mount and foam layers produce a deeper, more satisfying sound that many pre-built keyboards lack.
It also suits competitive gamers who need every millisecond advantage. The 8000Hz polling rate and Snap Tap support can improve reaction times in fast-paced shooters and MOBAs. The compact 75% layout keeps essential keys within easy reach while freeing up mouse space.
On the other hand, if you need a ready-to-use keyboard out of the box, or if you're new to mechanical keyboards and don't want to source separate parts, look elsewhere. The barebones format adds complexity and cost that casual users may find overwhelming.

Product Disclosure (Amazon)

  • Manufacturer: Razer(レイザー)
  • Seller: Amazon US
  • Fulfilled by: Amazon US
  • ASIN: B0HCRB4PK2
  • Note: This article covers a manufacturer-made product based on Amazon listing details.