Asus ROG Falchion Ace 75 HE specifications and in-depth review

Asus ROG Falchion Ace 75 HE

Manufacturer: Asus

The Asus ROG Falchion Ace 75 HE is a wired mechanical gaming keyboard built in a compact 75% layout, offering a balance between a reduced footprint and retained functionality. It uses a gasket mount construction with an aluminum plate housed in a plastic and aluminum case, available in both black and white colorways. The keyboard supports RGB backlighting with south-facing LEDs, includes adjustable feet, and comes with a detachable cable for easier transport or replacement.

At the core of this keyboard are the ROG HFX V2X Magnetic Hall effect switches, which are hot-swappable and linear in feel, with an actuation force of 40 g and a total travel distance of 3.5 mm. The adjustable actuation range spans from 0.1 mm to 4 mm, and the board supports rapid trigger, dual actuation, analog input, and full N-key rollover. Keycaps are PBT double-shot in an OEM profile with a standard ANSI layout, and a rotary dial is included for additional input control. The polling rate reaches 8000 Hz over USB, and the keyboard ships with a one-year warranty.

Pros
  • The Hall effect switches offer an adjustable actuation range from 0.1 mm to 4 mm, along with rapid trigger and dual actuation support, giving users precise control over keystroke behavior
  • Hot-swappable switches allow for easy replacement without soldering
  • An 8000 Hz polling rate ensures very frequent input reporting over USB
  • The gasket mount with an aluminum plate provides a more flexible typing feel compared to rigid plate-mounted designs
  • The detachable cable makes the keyboard easier to transport and replace if needed
  • A rotary dial adds a convenient physical control for quick input adjustments
Cons
  • No support for QMK, ZMK, or VIA firmware, limiting customization options for users who prefer open-source configurability
  • Media functions are only accessible via the Fn key, with no dedicated media keys
  • No wrist rest is included, which may affect comfort during extended typing sessions
  • No USB passthrough port is available on the keyboard itself
  • The one-year warranty period is relatively short for a peripheral in this category
Who is this for?

This keyboard is well-suited to competitive and enthusiast gamers who need precise input control through rapid trigger and adjustable actuation, particularly those who benefit from the Hall effect switch technology's wide actuation range. The 8000 Hz polling rate makes it a strong fit for users who prioritize minimal input latency in fast-paced gaming scenarios. Its compact 75% layout also works well for users with limited desk space who still want access to function row keys and a rotary dial for on-the-fly adjustments.

Who is this NOT for?

Users who rely on open-source firmware customization through QMK, ZMK, or VIA will find this keyboard restrictive, as none of those platforms are supported. It is also less suited to those who prefer a dedicated media key row for quick audio or playback control without using the Fn layer. Additionally, users who need Mac-specific key labeling or layout behavior will find this keyboard is not designed with that platform in mind.

General info:

Keyboard type Gaming, Mechanical
Keyboard layout size Compact (75%)
Profile Standard
connectivity Wired
connection type USB
polling rate 8000 Hz
Mount type Gasket mount
designed for Mac
has a detachable cable
height 145 mm
width 320 mm
thickness 35 mm
weight 668 g
warranty period 1 years

The Asus ROG Falchion Ace 75 HE is a wired mechanical gaming keyboard built in a compact 75% layout with a standard profile, connecting to a host system via USB with a detachable cable. It uses a gasket mount design and reaches a polling rate of 8000 Hz, placing it at the higher end of input reporting speeds. The keyboard measures 320 mm wide, 145 mm deep, and 35 mm thick, with a total weight of 668 g. It is not designed for Mac use, and comes backed by a one-year warranty.

Design:

has RGB lighting
Has a backlit keyboard
Case material Plastic, Aluminum
Plate material Aluminum
Case colors Black, White
has adjustable feet
includes a wrist rest
Backlight facing direction South-facing

The keyboard features a backlit layout with RGB lighting using south-facing LEDs, set into a case constructed from a combination of plastic and aluminum with an aluminum plate. It is available in two colorways — black and white — and includes adjustable feet to modify the typing angle. No wrist rest is included in the package.

Switches:

Switch type Hall effect
Switch feel Linear
Hot-swappable switches
Switch name ROG HFX V2X Magnetic Switch
Actuation distance (min) 0.1 mm
Actuation distance (max) 4 mm
Actuation force 40 g
Total travel distance 3.5 mm

This keyboard is equipped with the ROG HFX V2X Magnetic Switch, a Hall effect switch with a linear feel and an actuation force of 40 g. The total travel distance is 3.5 mm, while the actuation point can be set anywhere between 0.1 mm and 4 mm, offering a wide range of sensitivity adjustment. The switches are hot-swappable, allowing them to be replaced without soldering.

Features:

has analog input
has rapid trigger
has dual actuation
has adjustable actuation
has NKRO
has USB passthrough
Has a display
has QMK support
has ZMK support
has VIA support

The keyboard supports rapid trigger, dual actuation, and adjustable actuation, giving users fine-grained control over how and when keystrokes register. Analog input and full N-key rollover (NKRO) are also supported, ensuring all simultaneous keypresses are recognized without conflict. On the other hand, the board does not include USB passthrough, a display, or support for QMK, ZMK, or VIA firmware customization.

Keys & layout:

Keyboard layout ANSI (United States)
Keycap type PBT, Double-shot
Keycap profile OEM
uses a standard key layout
Media keys Via Fn key
has a rotary dial

The keyboard uses a standard ANSI (United States) layout with PBT double-shot keycaps in an OEM profile, and the key arrangement follows a standard layout without any non-standard sizing. Media controls are accessible via the Fn key rather than dedicated keys, and a rotary dial is included as an additional input element for quick adjustments.

Final Verdict

The Asus ROG Falchion Ace 75 HE is a feature-dense compact keyboard built around the strengths of Hall effect switch technology, offering a level of input precision that few wired keyboards in this layout class can match. Its adjustable actuation range, rapid trigger, and dual actuation support make it a well-rounded option for competitive gamers who demand consistent and configurable keystroke behavior, while the 8000 Hz polling rate and gasket mount construction further reinforce its performance-focused design. The absence of open-source firmware support and dedicated media keys may give pause to users who prioritize deep customization or workflow-oriented layouts, but for those whose primary concern is responsive, controllable gaming input in a compact form factor, the ROG Falchion Ace 75 HE represents a technically solid and purposeful choice.