K840 Mechanical Keyboard with Romer G Mechanical Switches - Logitech

The Logitech legacy you love. The accuracy and comfort you demand. The K840 is the mechanical keyboard with a durable aluminum build that delivers confidence with every keystroke, essential to blazing through your daily workload.

Enjoy an elevated typing experience with expertly engineered Romer-G mechanical key switches designed to stay up to speed and respond as fast as your hands can move. Type confidently with responsive and accurate tactile feedback, quiet keys and lasting Logitech reliability.

*Requires Logitech Options Software on Windows available for download at logitech's official website.

Faster, quieter Romer-G key switches

Type more quickly, accurately, quietly and comfortably with Logitech’s exclusive Japanese-engineered mechanical switches. They deliver ideal tactile feedback and near-instant responsiveness with every keystroke—so you can type with less force and minimize finger fatigue even during long, demanding typing sessions.

Aluminum build, refined finish

Featuring an anodized aluminum top case, K840 is solidly built for demanding use and long-lasting reliability. The modern textured finish looks great in any environment, whether you’re working on a desk at home or in the office.

Reliability in every key press

26-key Rollover ensures that every key press is registered independently and accurately, helping minimize typos when you release one key and press another. Plus, the keys are tested to 70 million+ strokes so you can power through years of typing without worries.

Enhanced productivity features

Easily customize F1-F4 keys with your favorite commands using Logitech Options Software. A Windows lock key prevents an inadvertent press of the Windows key while you’re focused on other tasks. Shortcut and media keys put faster control at your fingertips.

Familiar, durable design

Type with speed and confidence on a full-size keyboard with the familiar layout you already use. The 1.8m cable gives you the freedom to place the keyboard exactly where you want and is reinforced with built-in strain relief for extra durability.

Simple setup

K840 is ready to start using with your Windows-based laptop or desktop computer. Simply plug the cable into a USB port and start typing.