HI75C - Aluminum Gasket-Mount Keyboard (Prebuilt / Barebone kit)

A compact 75% keyboard in an aluminum case, with a multi-function knob and hot-swappable switches — built around a foam stack that gives it a full, satisfying sound without the premium price tag. Available wired-only or in tri-mode Pro trim with wireless and Bluetooth, barebone or fully built.

Feature Overview

• Five-layer dampening A deep, consistent “thocky” sound out of the box
• Full hot-swap PCB 3-pin and 5-pin switches, no soldering required
• 75% layout Full function row and arrows, without the wasted desk space
• Rotary knob Mode-dependent controls and RGB effect cycling
• Tri-mode Pro connectivity 2.4GHz wireless, Bluetooth, and wired, across 4 devices
• 1000Hz polling, full NKRO Accurate, missed-input-free response

Sound & Acoustics

The sound comes from what's stacked inside the case. PO foam, an IXPE switch pad, PO bottom foam, a PET bottom pad, and a Gasket Soft-Elastic Structure work together to cut the hollow ping that cheaper boards are known for. The result is a deeper, more consistent tone across the board — without needing any aftermarket mods.

Hot-Swap & Switches

Every one of the 81 keys sits on its own dedicated slot on a 1.2mm PCB, so no switch shares a connection point with its neighbor — keystrokes feel consistent whether you're hitting the center of the board or a corner key. Sockets accept both 3-pin and 5-pin switches, so swapping feel is just pull and replace — no iron, no desoldering. Stock kits ship with LEOBOG's own Turquoise or Star Arrow linears, rated for roughly 60 million presses, with select pre-built colorways offering Seiya, Glazed, or Strawberry Mint instead.

75% Layout

You keep the full function row and arrow cluster, lose the numpad, and get back some desk space. Everything you use day to day, minus the block of keys most people never touch.

The Knob

One knob, two modes. In Office mode it's volume and mute. Switch to Game mode and the same knob controls RGB brightness, with a click stepping through all 17 lighting effects. Backlit builds run south-facing LEDs across 16 million colors with 10 music-reactive modes; non-backlit kits skip the lighting layer and stay in Office mode only.

Specifications

Hi75C Series - 81-Key Hot-Swappable Custom Keyboard
Layout	75% Layout - 81 Key Arrangement
Model Name	Hi75C			Hi75CPro
Keycap Process	/		Original Height PBT Tri-color	/	OEM PBT Gradient Side-engraved	Original Height PBT Tri-color		Original Height PBT Topographic
Product Image	White	White / Black	Mountain Rain White	White / Black / Racing Yellow Grape Purple / Sky Blue	Vanilla Ice	Blackberry Pink	Baileys Sweet	Black Topographic
Connection Method	Wired			Tri-mode Connection (2.4G / Wired / Bluetooth)
Switch	/		Star Arrow Switch	/	Star Arrow Switch	Turquoise Switch
Stabilizer	LEOBOG Custom Fine-tuned Stabilizer
Main Lighting	/	RGB Full Color
Structure	Hardcore GASKET Structure
Positioning Plate	PP Positioning Plate							FR4 Positioning Plate
Internal Filling	PO Cotton + IXPE Switch Pad + PET Pad + Single-Key Slotted PCB + PO Cotton + PET Bottom Pad
Driver	LEOBOG Fully Self-developed Client Driver (Supports Windows system by default)
Battery Capacity	/			4000mAh Large Battery
Supported Systems	Windows / MacOS / Linux / Android