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URX Core75 Overview

The URX Core75 is a 75% wireless mechanical keyboard designed for gamers, programmers, and keyboard enthusiasts.


Key Features

  • 75% Compact Form Factor: 81 keys including a dedicated function row, arrow cluster, and navigation keys.
  • Integrated Rotary Knob: Can be assigned to any function using software.
  • Dual Mount Structure: Uses both Top Mount and Gasket mount for a typing feel similar to custom keyboards.
  • Tri-Mode Connectivity: Switch seamlessly between USB Wired, 2.4GHz Wireless, and Bluetooth.
  • Hot-Swappable Sockets: Supports both 3-pin and 5-pin MX-style mechanical switches without soldering.
  • Pre-Lubed Custom Switches: High-performance linear switches pre-lubricated for ultra-smooth keypresses right out of the box, delivering a refined, deep, and satisfying sound signature.
  • Double Shot PBT Keycaps: Premium PBT construction with double-shot legends that never fade or wear off, featuring a textured surface resistant to oil and finger shine.
  • North-Facing RGB LEDs: Bright LEDs with support for standard top-printed shine-through keycaps.
  • Translucent Case: Frosted translucent casing that diffuses light for an immersive, vibrant RGB underglow.
  • Open Source Firmware based on QMK: Uses open-source firmware based on QMK with VIA. Also fully supported on URX HUB.
  • RGB Customization: Supports SignalRGB and OpenRGB, featuring 50+ built-in RGB effects, PaletteFX support, and custom per-key RGB configuration.
  • SOCD (Simultaneous Opposing Cardinal Directions): Built-in support for SOCD for WASD keys, customizable in QMK firmware.
  • Premium FR4 Plate & PCB: Features a 1.2mm non-flex cut PCB paired with a 1.5mm thick FR4 plate, delivering a solid, rigid typing feel and great acoustics even without using sound-dampening foams.
  • 5-Layer Sound Dampening: 5 layers of sound-absorbing foam to prevent case hollowness and deliver a refined, deep sound signature.
  • High-Quality Cable: Custom thick braided coiled cable equipped with metal connectors on both sides.

Technical Specifications

Product Overview

Feature Detail
Product Name URX Core75
Type Mechanical Keyboard
Layout Compact 75% ANSI (81 Key + 1 Knob)
Knob Support Yes
Variants Frost White, Frost Blue, Smoke Black, Smoke Grey, Smoke White

Connectivity and Power

Feature Detail
Connectivity Tri Mode (Wired, 2.4GHz, Bluetooth)
Max Devices 5 Connected Devices
Breakdown 3x BT + 1x 2.4G + 1x Wired
Cable Type Detachable USB-C
Battery Capacity 4000mAh
Dongle Storage Yes
NKRO Support Yes
OS Support Windows, macOS, Linux

Keycaps and Switches

Feature Detail
Keycaps Double Shot PBT Cherry Profile
Switches Pre Lubed Zen Switches
Switch Support 3 Pin / 5 Pin Hot Swap
Stabilizers Pre Lubed Plate Mounted
Pre Lubed Stabs Yes
Screw in Stabs Support Yes

Build and Mounting

Feature Detail
Mounting Style Top Mount + Gasket Mount
PCB Non Flex Cut PCB
Plate Non Flex Cut 1.5mm FR4 Plate
Disassembly 8 Screws + 2 Side Clips
Adjustable Height Yes
Rubber Feet Yes

Sound Dampening

Feature Detail
Sound Dampening 5 Layer Sound Dampening System
(IXPE Switch Pad + PET Sheet + PORON Plate Foam + PORON Bottom PCB Foam + Thick Silicone Bottom Pad)

Case and Appearance

Feature Detail
Case Material Thick Translucent Plastic
Side Tag CIDOO Branded, Removable
Dimensions 32.5 x 14.2 x 3cm
Keyboard Weight 910g
Box Weight 1210g (including accessories)

RGB and Lighting

Feature Detail
RGB Orientation North Facing
Per Key Support Yes
Lighting Type 16.8M Color ARGB Per Key
RGB Effects 50+ Built-in Effects
Audio Sync Yes (via SignalRGB)
RGB Support SignalRGB, OpenRGB, PaletteFX

Firmware and Software

Feature Detail
Firmware Open Source based on QMK
Supported Apps VIA, URX HUB (Wired + 2.4G Experimental), VIAL, SignalRGB, OpenRGB (Wired)
On Board Memory Yes
Extra Features SOCD on WASD, Sleep Timer

What's in the Box

Your URX Core75 package includes:

What's in the Box

  1. URX Core75 Mechanical Keyboard
  2. 2.4GHz Wireless USB-A Receiver
  3. Custom Thick Braided Coiled Cable with Metal Connectors
  4. 2-in-1 Keycap and Switch Puller Tool
  5. 2x Replacement Mechanical Switches
  6. Custom Acrylic Dust Cover
  7. User Instruction Manual