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Overview

The LEOPOLD FC660MBT GRAYBLUE is a compact 65% mechanical keyboard with a Japanese JIS layout, featuring 70 keys including dedicated arrow keys. It comes pre-installed with CHERRY MX2A Red switches, known for their smooth linear feel and durability. The keyboard supports both Bluetooth wireless and USB-C wired connections, offering flexibility for various setups. It is powered by two AA batteries for Bluetooth operation, with the option to run on USB bus power even in wireless mode. The keycaps are made of 1.5mm thick PBT double-shot plastic, ensuring long-lasting legends and resistance to shine. Multiple layers of sound-dampening foam are placed inside the chassis to reduce echo and hollow sounds, resulting in a quieter typing experience. The keyboard also features hot-swappable switch sockets, allowing users to replace switches without soldering.

Connectivity & Compatibility

The FC660MBT connects via Bluetooth 5.0 (backward compatible) or a detachable USB-C cable. When using Bluetooth, it runs on two AA batteries; when connected via USB, it can use bus power while still maintaining Bluetooth capability. The keyboard is compatible with both Windows and macOS. For macOS, a dedicated DIP switch mode optimizes modifier key positions and behavior. Additionally, physical DIP switches allow for key mapping changes without software. The hot-swap sockets support standard CHERRY MX-compatible switches (3-pin and 5-pin). Keycaps are also MX-compatible, but note the Japanese layout includes additional keys for kana input, which may require careful consideration when replacing.

Product Info

The LEOPOLD FC660MBT GRAYBLUE was released around 2024 and is available from major retailers like . The price is approximately ￥14,480 (tax included), positioning it as a mid-range mechanical keyboard. It comes with a USB-C cable, a keycap puller, a switch puller, and a user manual. The manufacturer's warranty is typically one year. In the market, this keyboard offers excellent value: it packs premium features like PBT keycaps, sound dampening, and hot-swap support into a compact form factor at an accessible price point. It competes well against more expensive models while maintaining high build quality.

Best Use Cases

The FC660MBT is ideal for users who need a compact layout without sacrificing arrow keys. Its 65% size saves desk space, making it great for gaming setups where mouse space is priority. The Bluetooth connectivity makes it perfect for laptop users or those who want a clean, cable-free desktop. Japanese typists will appreciate the full kana layout with dedicated arrow keys, which feels natural for everyday use. The hot-swap capability allows enthusiasts to experiment with different switch types, while the linear red switches provide a quiet and smooth typing experience suitable for both fast-paced gaming and long typing sessions.