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Keychron C3PX-H1 C3 Pro 8K wired 80% ANSI keyboard with Super Red linear hot-swap switches, selectable up-to-8000Hz polling, RGB and sidelights, Cherry-profile PBT keycaps, gasket mounting and QMK/Launcher configuration.
R1,549.00
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Keychron C3 Pro 8K • C3PX-H1
This black C3 Pro 8K combines an 80% ANSI layout with wired USB-C, RGB lighting and Keychron Super Red switches. Its hot-swap sockets, gasket-mounted assembly and QMK-based customisation give you a keyboard that can change in both feel and function without taking over the desk.
Polling with a choice
Keychron Launcher lets you select 1000, 4000 or 8000Hz polling over the wired connection. At the 8000Hz setting, the nominal report interval is 0.125ms; that interval describes USB reporting, not complete key-to-screen latency. Choose a setting that suits the computer and software rather than treating the highest number as a guaranteed gaming result.
The supplied switches
C3PX-H1 is the RGB hot-swappable version supplied with Keychron Super Red mechanical switches. These factory-lubed linear switches are specified at 45 ± 15gf operating force, 2.0 ± 0.4mm pre-travel and 4.0 ± 0.4mm total travel. The manufacturer’s switch endurance rating is up to 50 million cycles; it is a component rating, not a promise of years of use.
Customise the hardware
The hot-swap PCB supports most normal-profile 3-pin and 5-pin MX-style mechanical switches. Align the pins and use the correct removal tools when experimenting; magnetic, optical and low-profile switch systems are different. Cherry-profile double-shot PBT shine-through keycaps sit above north-facing RGB LEDs, with sidelights extending the lighting around the board.
Structure and sound
The ABS body houses a gasket-mounted typing assembly, plate-mounted stabilisers and acoustic layers including 3.5mm EVA foam, IXPE film, EPDM foam and a silicone pad. The TKL layout keeps the function row, navigation block and arrows while omitting the number pad. Sound and feel still depend on switches, keycaps and typing style.
QMK and Launcher
Use the official Keychron Launcher with a supported Chrome, Edge or Opera browser to remap keys, create macros and adjust supported settings. The keyboard uses open-source QMK firmware and supports Windows and macOS layouts, with corresponding extra keycaps. Fn + Caps Lock switches the system layout. Follow the exact C3 Pro 8K guide before resetting or changing firmware; the original C3 Pro is a different model.
Fit and connection
A detachable USB-C connection keeps the board wired, and the supplied Type-A adapter provides another host connection option. The case footprint is 364.6 × 137.8mm, with adjustable typing angles of 4°, 6° and 8.7°. Front and rear case heights are 20.6mm and 29.9mm without keycaps, so allow additional clearance for the complete key profile.
| Manufacturer | Keychron |
|---|---|
| Product | C3 Pro 8K QMK |
| SKU | C3PX-H1 |
| Colour | Black |
| Layout | 80% TKL, ANSI |
| Supplied switch | Keychron Super Red |
| Backlight variant | RGB, hot-swappable |
| Connection | Wired USB Type-C |
| Selectable polling | 1000Hz / 4000Hz / 8000Hz through Keychron Launcher |
|---|---|
| Maximum rated polling | 8000Hz (wired) |
| MCU | 32-bit ARM Cortex-M4 AT32F405 |
| Firmware | QMK |
| Nominal interval at 8000Hz | 0.125ms USB reporting interval; not full system latency |
| Action | Linear |
|---|---|
| Operating force | 45 ± 15gf |
| Pre-travel | 2.0 ± 0.4mm |
| Total travel | 4.0 ± 0.4mm |
| Lubrication | Factory pre-lubed |
| Manufacturer endurance rating | Up to 50 million cycles |
| Stem | POM, MX-style |
| Housing | PC cover; nylon base |
| Pins | 5-pin |
| Switch compatibility | Most normal-profile 3-pin / 5-pin MX-style mechanical switches; verify fit |
| Body | ABS plastic |
|---|---|
| Mount | Gasket mount |
| Stabilisers | Plate-mounted |
| Keycaps | Cherry-profile double-shot PBT, shine-through |
| Main lighting | North-facing RGB LEDs |
| Additional lighting | Sidelights |
| Acoustic layers | 3.5mm EVA foam, IXPE film, EPDM foam, silicone pad |
| System layouts | Windows and macOS; extra OS keycaps included |
|---|---|
| System toggle | Fn + Caps Lock |
| Configuration | Keychron Launcher; QMK key remapping and macros |
| Launcher browsers | Supported Chrome / Edge / Opera versions; USB device access permission required |
| Firmware selection | Use C3 Pro 8K exact layout/backlight guidance; do not substitute standard C3 Pro firmware |
| Length | 364.6mm |
|---|---|
| Width | 137.8mm |
| Front height without keycaps | 20.6mm |
| Rear height without keycaps | 29.9mm |
| Feet height | 1.3mm |
| Typing angles | 4° / 6° / 8.7° |
| Weight | 830 ± 10g |
| Operating temperature | −10–50°C |
| Included | Keyboard, USB-C to USB-C cable, USB-A to USB-C adapter, 2-in-1 keycap/switch puller; extra Windows/macOS keycaps |
| Supplied warranty | 12 months, subject to applicable terms |
This C3PX-H1 configuration is wired and uses Super Red mechanical switches. Select compatible normal-profile MX-style switches for customisation and use the exact C3 Pro 8K firmware guidance.
Use official support resources for this product. Each link opens in a new tab.
Exact C3 Pro 8K guide covering shortcuts, reset, firmware and official Launcher configuration. Use the wired ANSI/RGB model’s instructions; unrelated Bluetooth or receiver resources do not add wireless hardware to this keyboard.
Open official support (opens in a new tab)Official model-specific manual. Select the matching layout and follow the manufacturer’s instructions before changing firmware. Basic keyboard use and browser-based configuration have different host requirements.
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