AULA F75 75% Tri-Mode Wireless Mechanical Gaming Keyboard – Gradient Grey Side-Engraved, RGB, Hot-Swappable, Gasket Mount (Open Sealed)

Description

The AULA F75 is a compact 75% wireless mechanical gaming keyboard designed for gaming, productivity, programming, and everyday desktop use. Its 80-key layout retains the function row, arrow keys, and essential navigation controls while saving considerably more desk space than a full-size keyboard.

It supports three connection modes—2.4GHz wireless, Bluetooth 5.0, and USB Type-C wired—allowing it to be used with gaming PCs, laptops, tablets, and compatible mobile devices. The Gradient Grey edition features side-engraved keycaps, RGB illumination, a multifunction control knob, and factory-lubricated linear mechanical switches.

The keyboard uses a gasket-mounted internal structure for a softer, more cushioned typing feel. Its hot-swappable PCB allows compatible mechanical switches to be replaced without soldering. A built-in 4000mAh rechargeable battery supports portable wireless use.

This unit is sold in Open Sealed condition. The original packaging has been opened, but the product should be inspected and tested before sale.

Key Features

• Compact 75% mechanical keyboard
• 80-key ANSI layout
• Gradient Grey color scheme
• Side-engraved keycaps
• Three connection modes
• 2.4GHz low-latency wireless
• Bluetooth 5.0
• USB Type-C wired connection
• Gasket-mounted internal structure
• Hot-swappable mechanical switches
• Compatible with suitable 3-pin and 5-pin MX-style switches
• Factory-lubricated linear switches
• Commonly supplied with LEOBOG Reaper linear switches
• South-facing RGB illumination
• Multiple RGB lighting effects
• Full N-Key Rollover
• Anti-ghosting support
• Multifunction volume-control knob
• 4000mAh rechargeable battery
• Cherry-profile keycaps
• ABS plastic case
• Suitable for Windows, macOS, Android, and iOS
• Model: AULA F75
• Condition: Open Sealed

Compact 75% Layout

The AULA F75 uses an optimized 80-key layout that provides most frequently used keyboard controls without occupying the space required by a full-size keyboard.

It retains:

• Number row
• Dedicated function-key row
• Arrow keys
• Essential navigation keys
• Delete key
• Multifunction control knob

The dedicated numeric keypad is removed, providing more room for mouse movement during gaming and helping create a cleaner desktop setup.

Tri-Mode Connectivity

The keyboard supports three connection options:

2.4GHz Wireless

The included USB receiver provides a responsive wireless connection suitable for gaming and general computer use.

Bluetooth 5.0

Bluetooth connectivity is convenient for laptops, tablets, smartphones, and devices with limited USB ports.

USB Type-C Wired

The included USB Type-C cable allows the keyboard to be used in wired mode while charging its internal battery.

For competitive gaming, the 2.4GHz or wired mode is generally preferable to Bluetooth because it normally provides lower input latency.

Gasket-Mounted Structure

The AULA F75 features a gasket-mounted keyboard structure. Soft mounting materials isolate the internal plate from the outer case, helping produce a more cushioned typing feel and reducing harsh vibration.

The gasket structure can provide:

• Softer keystroke feel
• Reduced case vibration
• Improved acoustic consistency
• Deeper mechanical-keyboard sound
• Greater comfort during extended typing sessions

The phrase “Structure of Seal” used in some product titles refers to the gasket-mounted construction. It does not mean that the keyboard is sealed or waterproof.

Hot-Swappable Mechanical Switches

The hot-swappable PCB allows compatible mechanical switches to be removed and replaced without soldering.

This makes it possible to:

• Replace a damaged switch
• Test different switch types
• Customize typing feel
• Adjust the keyboard’s sound
• Mix switches for selected keys

The Gradient Grey side-engraved edition is commonly supplied with factory-lubricated LEOBOG Reaper linear switches. Because AULA sells the F75 with several switch packages, the installed switch model should be confirmed from the box label or by removing and inspecting one switch. The exact Gradient Grey/Reaper configuration is documented by a retailer listing for the F75 GRR variant. Gradient Grey F75 GRR listing

Linear Mechanical Switches

Linear switches provide a smooth downward movement without a tactile bump. They are suitable for rapid gaming inputs and comfortable everyday typing.

Factory lubrication helps provide:

• Smoother key travel
• Reduced spring and stem friction
• More consistent keystrokes
• A fuller mechanical-keyboard sound
• Comfortable repeated key presses

Switch sound and feel can still vary slightly between individual keys.

Side-Engraved Gradient Keycaps

The legends are positioned on the front-facing side of the keycaps rather than prominently on top. This gives the keyboard a cleaner appearance and allows the RGB lighting to illuminate the side legends.

The side-engraved F75 variants use south-facing LEDs, while other standard F75 keycap versions may use north-facing LEDs, according to AULA’s official specifications. AULA F75 official product page

Side legends may be less visible when the RGB lighting is disabled or when the keyboard is used in a poorly lit room.

RGB Backlighting

The AULA F75 includes RGB backlighting with multiple colors and lighting effects. Depending on the selected mode and software support, users can adjust settings such as:

• Lighting effect
• Color
• Brightness
• Animation speed
• Direction
• RGB on/off

The side-engraved design is especially suited to the south-facing LEDs used by this version.

Multifunction Control Knob

The control knob provides quick access to supported media and lighting functions. Its normal functions include volume adjustment and mute control, while additional behavior may depend on the selected operating mode or firmware version.

The knob is useful for:

• Adjusting game volume
• Controlling music playback volume
• Muting sound quickly
• Managing supported lighting functions

Full N-Key Rollover

Full N-Key Rollover allows multiple keys to be registered simultaneously, helping prevent missed inputs during fast gaming combinations.

This is useful for:

• FPS gaming
• Competitive multiplayer games
• Rhythm games
• Action games
• Keyboard shortcuts
• Rapid typing

Actual rollover behavior can depend on the connection mode, operating system, and device compatibility.

4000mAh Rechargeable Battery

The built-in 4000mAh rechargeable lithium battery supports extended wireless operation. Battery runtime varies depending on:

• RGB brightness
• Selected lighting effect
• Bluetooth or 2.4GHz connection
• Sleep settings
• Daily usage
• Battery age and condition

The keyboard can be charged through its USB Type-C port. Because this is an Open Sealed product, the battery should be fully charged and tested before delivery.

Specifications

The 80-key layout, gasket mount, hot-swap support, factory-lubricated linear switches, Bluetooth 5.0/2.4GHz/wired connectivity, NKRO, 4000mAh battery, dimensions, and weight are listed by AULA’s official F75 specifications.

Wide Compatibility

Suitable for compatible:

• Windows gaming PCs
• Desktop computers
• Gaming laptops
• MacBook Pro
• MacBook Air
• Mac mini
• iMac
• Android tablets
• Android smartphones
• iPad models
• iPhone models
• Smart TVs with keyboard support
• USB-C and Bluetooth-enabled devices

Advanced RGB customization and key remapping may require AULA software. Software features can be more limited on macOS, Android, and iOS than on Windows.

Package Contents

The standard manufacturer package includes:

• AULA F75 Keyboard ×1
• 2.4GHz USB Wireless Receiver ×1
• USB Type-C Cable ×1
• 2-in-1 Keycap and Switch Puller ×1
• User Manual ×1

Package contents should be physically confirmed because the product is Open Sealed.

Open Sealed Inspection Checklist

Before sale or delivery, confirm:

• The product is the AULA F75, not the F75 Pro or another variation
• Gradient Grey side-engraved keycaps are installed
• Installed switch model matches the box or seller description
• All 80 keys register correctly
• 2.4GHz wireless receiver is included
• 2.4GHz mode connects and works correctly
• Bluetooth pairing works correctly
• USB-C wired mode works correctly
• Battery accepts and holds a charge
• USB-C charging port is undamaged
• Control knob rotates and presses correctly
• RGB LEDs work across the keyboard
• Hot-swap sockets have not been damaged
• Switch pins are not bent
• Stabilized keys work correctly
• No keycaps or switches are missing
• Case, feet, switches, and accessories are in good condition
• No previous unauthorized modifications are present
• Keyboard is reset before being supplied to the buyer

Important Notes

• This is a mechanical keyboard, not a Hall Effect or magnetic-switch keyboard.
• Hot-swappable does not mean that magnetic or optical switches are supported.
• Disconnect the keyboard before removing or installing switches.
• Ensure switch pins are straight before inserting a replacement switch.
• The 75% layout does not include a dedicated numeric keypad.
• Side legends may be harder to read when RGB is switched off.
• Gasket mount does not mean waterproof or spill-resistant.
• Bluetooth normally has higher latency than 2.4GHz wireless or wired operation.
• Battery runtime depends heavily on RGB brightness and battery condition.
• Key legends, bottom-row arrangement, switches, and accessories may vary by production batch or regional package.
• Warranty coverage depends on the individual seller and should be stated separately.

Best For

• PC gaming
• Compact gaming setups
• FPS and action games
• Programming and coding
• Office productivity
• Home workstations
• Students
• Wireless desktop setups
• Mechanical-keyboard customization
• Multi-device users
• RGB gaming setups
• Users who prefer smooth linear switches

Why Choose the AULA F75?

• Space-saving 75% layout with 80 keys
• Three wired and wireless connection modes
• Responsive 2.4GHz connection for gaming
• Bluetooth 5.0 for portable devices
• USB-C wired operation and charging
• Gasket-mounted structure for a cushioned typing feel
• Hot-swappable mechanical switches
• Factory-lubricated linear switches
• Stylish Gradient Grey side-engraved keycaps
• South-facing RGB illumination
• Full N-Key Rollover
• Convenient multifunction control knob
• Large 4000mAh rechargeable battery
• Suitable for gaming, typing, programming, and everyday productivity
• Open Sealed condition offers a potentially lower-cost option when fully inspected and tested