
Keychron C3 Pro
Score: 89/100ProtoArc Bluetooth Ergonomic Keyboard
Score: 93/100Rankings
ProtoArc's range of Bluetooth ergonomic keyboards offers split designs, long battery life and multi-device support, with models ranging from full-size backlit EK01 Plus to ultra-portable foldable XK03. They provide solid comfort but lack wired connectivity and programmable keys.

The Keychron C3 Pro 8K is a wired tenkeyless keyboard that combines a high-end gasket-mount design, hot-swappable switches, and an ultra-fast 8000 Hz polling rate, targeting gamers and power users who value low latency and customization.
| Attribute | ![]() | ProtoArc Bluetooth Ergonomic Keyboard |
|---|---|---|
— | 4,320 hoursbest | |
| ↓ lower better | 830 grams | 400 gramsbest |
8,000 Hzbest | — | |
12 monthsbest | — | |
— | 5best |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ProtoArc Bluetooth Ergonomic Keyboard |
|---|---|---|
Lighting(1) | ||
Backlighting | RGB | None |
Layout & Size(2) | ||
Keyboard Layout | TKL | Full-size |
Weight (grams) | 830 grams | 400 grams |
Build & Design(1) | ||
Case Material | ABS | PU leather |
Connectivity(1) | ||
Connection Type | Wired USB-C | Bluetooth, 2.4GHz |
Switches(1) | ||
Switch Type | Keychron Super Switch | Scissor |
Compatibility(1) | ||
Operating System Compatibility | Windows/macOS/Linux | Windows, macOS, Android, iOS |

Products in the top-left offer the best value (high score, low price).

Professional reviewers commend the C3 Pro 8K for its gasket-mount construction, high polling rate, and solid build quality, noting that it delivers flagship-level features at a budget-friendly price.
Everyday users consistently praise the keyboard's quiet, tactile typing experience, the durability of the PBT keycaps, and the ease of use of the Keychron Launcher web app.
Professional reviewers view ProtoArc as a strong contender in the ergonomic keyboard niche, praising the EK01 Plus for its premium build and the XK03 as an excellent travel solution, while highlighting the lack of wired connectivity and occasional Mac compatibility quirks.
Everyday users generally appreciate the comfort and durability of ProtoArc keyboards, noting significant reductions in wrist strain and impressive battery longevity. Main pain points are the learning curve of the split layout and backlight auto-off on the EK01 Plus.
“designed for gamers and users with high-performance needs”

“zero latency during gaming”

“quiet typing experience with premium feel”

