Si75-HE High Performance Hall Effect Keyboard

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Sale price$149.99 CAD
Color: Red

Precision Meets Customization

Elevate your typing and gaming experience with the Si75-HE, a premium Hall-Effect keyboard from ONEofZERO designed for enthusiasts who demand performance, versatility, and style. Blending cutting-edge input technology with modular customization, the Si75-HE stands out as a high-responsiveness 75 % layout keyboard built for both productivity and play.

Last Keystroke Prioritization

Favours last key press and deeper inputs when keys overlap to prioritize meaningful keypresses enabling smooth and intentional strafing.

Analog Mode

Hall effect sensors detect the depth of each key press translating into variable movement speeds.

Multi-Action Keystroke

Assign up to 4 distinct actions per key based on actuation distance.

Modular Silicone Ecosystem

The Si75-HE’s modular silicone ecosystem enhances acoustics and feel while introducing a new layer of visual expression through customizable, interchangeable components.

  • Rotary Knob
  • Gasket Strips
  • Dampening Pad
  • Height Adjustable Feet

Accent PBT Keycaps
Every keyboard includes all accent colours in the box, allowing you to mix and match with all silicone options.

Neutral PBT Keycaps
A complete set of two-tone grey keycaps comes stock, providing an understated base layer.

Keychron Ultra-Fast Lime Magnetic
Features pressure-sensitive Hall Effect sensors and a pre-lubed double-rail system for ultra-smooth linear keystrokes.

Aluminum Plate
Painted white aluminum plate provides stable switch alignment essential for Hall Effect sensors.

Hall Effect PCB
South-facing RGB LEDs

  • Hot-swap compatible with all north-pole-facing Hall Effect switches (KS-20)
  • Powerful MCU for ultra-fast inputs and response times
  • Screw-in stabilizers for optimized typing feel

Foam Layer
A porous foam layer between the plate and PCB absorbs resonance, reducing hollowness and improving sound quality.

Laminated Acoustic Dampening Layer
A soft PU foam paired with a rigid backing film that controls resonance, reducing ping and hollowness while producing a tighter, rounder sound profile.

Silicore Modular Components
From dampening pads to removable feet, gasket strips, and rotary knobs, each silicone component is part of a cohesive system designed for enhanced typing comfort and effortless customization.

Transparent Case
Frosted transparent ABS upper and lower case allow for a subtle pop from the silicone components within.

Gasket Mount Design

Silicone strips isolate the Plate and PCB from both the top and bottom case to provide vibration-dampened typing experience with a softer, more defined sound and feel.

Highly Responsive Low Latency with 8K Polling

Continuously detects key position to reset the moment you lift - no need to release fully enabling ultra-fast, precise repeated inputs.

Profile Toggle Switch

Swap between two customizable profiles on the fly via toggle switch.P1: Default typing profileP2: Default gaming profileProfiles are 100% customizable through the web launcher and saved onto the keyboard.

Si75-HE In Depth

Keyboard
  • Polling Rate 8K
  • Scan Rate 32K
  • Latency 200µs
  • Switch Compatibility KS-20 (N Pole Facing Down)
  • RGB LED South Facing RGB LED
  • Stabilizers Screw-In PCB Stabilizers
  • Mounting Silicone Gasket
  • Layout 75%
  • Switch Type Magnetic (N Pole Facing Down)
  • Dimensions 328.5 × 148.7 mm
  • Back Height 28 mm
  • Front Height 19 mm
  • Weight 985 g
  • Typing Angles 3.5° / 6.5°
Switch Technical Specs
  • Type Keychron Super-Fast Lime Magnetic
  • Material PC (Top), PA66 (Base), POM (Stem)
  • Travel Distance 3.5 mm
  • Actuation Range 0.1 – 3.35 mm
  • Actuation Sensitivity 0.01 mm
  • Key Starting Force 25 g
  • Bottom Out Force 48 g
  • Design Dual Rail, Pre-lubed
Keycaps
  • Material PBT
  • Profile Cherry
  • Legends Dye-Sub
  • Thickness 1.7 mm