Realforce R4 Fullsize

The switch mechanism employs a capacitive contactless system. The circuit is connected and recognised by detecting key presses, as the electrodes are approached to a certain level without any physical contact, making it reliable and durable.

APC compatible

TOPRE's proprietary APC (action point changer) feature allows you to adjust the on-position of each key switch from 0.8mm to 3.0 mm. Optimises the response speed of the key switch. For example, each key can be adjusted from 0.8mm or 1.5mm for fast typing and gaming applications to 3.0mm to reduce incorrect input.

Mouse Function

Key-typing on the keyboard allows you to move or click the mouse cursor. It works efficiently in different situations and is a convenient alternative when the mouse is unavailable.

Proximity sensor included

The keyboard detects objects using a proximity sensor and reconnects automatically when you put your hand close. Power-saving standby when not in use; efficient and comfortable to use. Only effective when the slide switch is on the ON side and when the battery is operated.

Quiet switch with low stress

Uses TOPRE's unique silent switch. It is very little irritating to the ears, so you can feel free to type your keys in a quiet room. It also reduces keyring noise that can interfere with your recipient during a remote meeting.

Soft tactile feel that is gentle on your fingers

You can feel a smooth, adequate stroke during the load change. There is no need to press the input, reducing the burden on your fingers.

Support software to customise key placement

Equipped with an interchangeable key map function, keys are repositionable and can be configured using dedicated software to change all key configurations for easy typing. Other applications include heat map, 4-sided key map, ECO mode setting, firmware update and onboard memory function.

Wireless compatible

You can switch between multiple pairings with four devices, such as smartphones and tablets, as well as Windows PCs (Five total connections, including wired connections).

Support all key simultaneous presses and N-key rollover

The simultaneous press function of all keys is recognised even if all keys are pressed at the same time, and the "N key rollover" ensures that entered inputs are accurately processed in the order of pressing, even during fast inputs. There is a limitation when using a Bluetooth connection.

No double input

There is a difference in the switch-on and switch-off position (hysteresis), so there is no double input (chattering), which is one of the malfunctions. Structurally, it prevents double inputs (chattering) to provide a stable input environment for long periods of time