Keychron has introduced the K3 Max SE, a new low-profile mechanical keyboard that shares much of its design and hardware with the recently announced K3 Ultra and K3 HE models. While the K3 Ultra and K3 HE were unveiled through Kickstarter with a broader retail release expected around June, the K3 Max SE is already available through the official Keychron store at a retail price of $104.99. The new model is positioned as a more accessible option for users who want a slim mechanical keyboard but do not necessarily need the additional features found in the higher-end variants.
The K3 Max SE follows a similar construction approach to the K3 Ultra, combining an aluminum top frame with a plastic lower chassis and rosewood accent panels integrated into the design. The keyboard uses LSA-profile double-shot PBT keycaps with contrasting legends, providing improved durability compared to ABS alternatives. At launch, the K3 Max SE is available in black and retains the same low-profile layout that has become increasingly popular among users transitioning from laptop keyboards.
A primary difference between the K3 Max SE and the K3 Ultra comes from firmware implementation. The K3 Max SE uses QMK firmware, a widely adopted open-source solution known for its flexibility in key remapping and layout customization. In comparison, the K3 Ultra is based on ZMK firmware, which is designed to improve wireless efficiency and extend battery life. Although both keyboards feature a 1,550 mAh battery, Keychron rates the K3 Ultra for up to 550 hours of use per charge, while the K3 Max SE is rated for up to 120 hours under typical conditions.
The K3 Ultra supports up to 8 kHz polling, while the K3 Max SE operates at 1 kHz. While higher polling rates are more commonly associated with gaming peripherals such as mice, the difference is unlikely to significantly affect everyday typing performance. The K3 Max SE retains tri-mode connectivity, allowing users to connect via Bluetooth 5.2, 2.4 GHz Wi-Fi, or USB-C wired, depending on their setup requirements.
Switch options remain consistent with the K3 Ultra lineup, with buyers able to choose between Keychron Milk POM Red, Brown, and Banana switches, offering linear, tactile, and more pronounced tactile feedback options. By offering similar build quality and core hardware features at a slightly lower price than the Kickstarter pricing for the K3 Ultra and K3 HE, the K3 Max SE expands Keychron’s low-profile mechanical keyboard lineup with a more budget-conscious alternative.
