Nuphy Air75 V2 vs Keychron K2 MaxLow-Profile vs Standard Height

Both are compatible with macOS. The Keychron K2 Max vendor description states it is built with Mac users in mind and includes a system toggle plus extra macOS keycaps. The Nuphy Air75 V2 listing also mentions macOS compatibility and includes dedicated shortcut keys for MacOS features like Spotlight and Launchpad.

The Keychron K2 Max features south-facing RGB LEDs, which the vendor states prevents interference with Cherry-profile keycaps. The Nuphy Air75 V2 uses low-profile switches and keycaps, which are not compatible with standard Cherry-profile keycaps without adapters or specific low-profile sets.

Yes. Both support open-source QMK firmware for deep customization. The Nuphy Air75 V2 is also compatible with the VIA configurator. The Keychron K2 Max can be configured through the Keychron Launcher web app, which works across different operating systems via a browser.

The Nuphy Air75 V2 is significantly more portable. It is less than half the thickness (14mm vs 32mm) and over 300 grams lighter (598g vs 940g) than the Keychron K2 Max. Nuphy also sells dedicated travel accessories like the NuFolio and NuPack.

The vendor descriptions do not specify if the stabilizers are pre-lubed. However, the Keychron K2 Max is noted to have newly enhanced, screw-in stabilizers with reinforced sidewalls. The Nuphy Air75 V2 description focuses on its spacebar silicone sound shaping tech but does not detail stabilizer lubrication.

The Nuphy Air75 V2 offers a variety of low-profile switches, including Gateron 2.0 series (Red, Blue, Brown) and Nuphy's own floral series like Moss, Cowberry, Aloe, and Wisteria. The Keychron K2 Max comes with Keychron Super switches (Red, Brown, Banana) in its hot-swappable version.

Yes, both are tri-mode keyboards, supporting 2.4GHz, Bluetooth, and wired USB-C connections. The Keychron K2 Max vendor description specifies Bluetooth 5.1 for connecting to three devices. The Nuphy Air75 V2 description mentions supporting 4 devices simultaneously via its wireless connections.

Based on vendor descriptions, the Keychron K2 Max has more explicitly detailed sound dampening. It features multiple layers of foam, including IXPE, PET, and EPDM, along with a steel plate. The Nuphy Air75 V2 uses plate poron, IXPE foam, and spacebar silicone for sound tuning.

The vendor descriptions do not explicitly mention a Windows lock key. However, both support full key remapping via QMK/VIA or Keychron Launcher, so you could potentially assign such a function to a key if the firmware allows it.

Both keyboards have a 4000mAh battery. The Nuphy Air75 V2 vendor page provides specific lab test results: up to 57 hours with lights on and up to 220 hours with lights off. The Keychron K2 Max description does not provide specific battery runtime estimates.

Yes. The Keychron K2 Max has a 1000Hz polling rate in both its 2.4GHz and wired modes, which is suitable for gaming. It also features N-key rollover and hot-swappable switches, allowing you to install gaming-focused linear switches if desired.

The Nuphy Air75 V2 uses its own low-profile nSA keycap profile. The Keychron K2 Max comes with OSA profile keycaps, which the vendor describes as an OEM profile with a spherical-angle top for a comfortable feel.