Hexgears I4 USB-C Aluminum Mechanical Keyboard - Hot-Swappable RGB

In this review of the Hexgears I4 USB-C Aluminum Gaming Keyboard, the bottom line is simple: this is a solid, customizable wired keyboard for PC and Mac users who want a premium metal build and easy switch swaps. The I4 stands out for its full aluminum case and hot-swappable PCB, making it ideal for keyboard tinkers and gamers seeking a durable deck with a smooth linear feel from the Kailh Crimson Quick Box switches. It delivers strong tactile refinement and long-term reliability without pretending to be a boutique custom board.

Key Features

• Kailh Crimson Quick Switch: Provides a linear, fast response with an enclosed Box design for improved dust and water resistance and an advertised 100-million-keystroke lifespan.
• Full aluminum case: The premium aluminum chassis with a spray-painted finish gives greater durability and a refined aesthetic compared with typical plastic keyboards.
• Hot-swappable PCB: Flex-cut hot-swap sockets let users change switches without soldering, so customization or experimentation is quick and simple.
• Per-key RGB lighting: The 16.8M dynamic RGB backlight supports per-key customization for color and effects, letting gamers craft immersive lighting setups.
• PBT keycaps: Thick PBT keycaps resist shine and feel substantial, improving long-term texture and typing comfort.
• Fully programmable driver: The included software enables remapping, macros and per-key RGB programming for workflow and gaming optimization.

Who It's For

This keyboard is best for PC and Mac users who value a metal chassis, hot-swap flexibility and a dependable linear switch for gaming or fast typing. Enthusiasts who like to test different switches will appreciate the ease of swapping without soldering, and the PBT keycaps and aluminum case suit users who want a durable daily driver.

Casual users who only need a basic plug-and-play board and expect very bright factory RGB lighting might look elsewhere, since a number of customers report the illumination is muted. Also, those seeking niche switch types not compatible with the hot-swap sockets should verify compatibility before purchase.

Pros & Cons

Pros

• Solid metal build and spray-painted finish lend premium feel and durability.
• Hot-swappable PCB makes switch customization easy for hobbyists and gamers.
• PBT keycaps and Kailh Box switches deliver satisfying sound and long life.
• Fully programmable software and per-key RGB provide deep customization.

Cons

• RGB illumination is reported as dim by several customers, so lighting may not be as vivid as some expect.
• Driver-dependent advanced features require installing software, which may be unnecessary for users wanting a simple setup.

Specifications

Brand	Hexgears
Connection	USB-C wired
Switches	Kailh Crimson Quick Box (linear)
Case	Full aluminum with spray-painted finish
Keycaps	Thick PBT, non shine-through
Lighting	16.8M per-key RGB backlight
PCB	Flex-cut hot-swappable

Our Verdict

The Hexgears I4 is a well-built mechanical keyboard that offers excellent value for users who want a metal case, hot-swap flexibility and reliable Kailh linear switches. It is particularly appealing to tinkerers and gamers who will use the programmable driver and swap switches, while those prioritizing very bright RGB may find it less impressive. Overall, it is a durable, customizable option that performs well for work and play.

Frequently Asked Questions

Can I change the switches without soldering?
Yes, the I4 has a flex-cut hot-swappable PCB that supports easy swap of compatible switches.

Is the keyboard compatible with Mac and Windows?
Yes, the wired USB-C connection works with Windows and Mac OS; driver features are available on supported platforms.

Are the keycaps prone to shine?
No, the keyboard uses thick PBT keycaps designed to resist shine and provide a durable surface.