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About four years ago, ASUS released the ultra-compact 65% ROG Falchion keyboard, which laid the foundation for a new line of devices. A year later, the updated version, ROG Falchion Ace, hit the market, which was well-received and solidified the success of its predecessor. ASUS didn’t stop there and also released the highly successful low-profile variant, the ROG Falchion RX Low Profile. By the way, after reviewing it, I purchased this keyboard and use it from time to time as my main one.
Here we have another addition to the lineup – the ROG Falchion Ace HFX, a keyboard featuring magnetic switches. The model retains the ultra-compact 65% layout of its predecessors, the touch panel from the RX Low Profile version, and, thanks to the magnetic switches, offers some features not found in standard mechanical keyboards. These include faster key actuation, adjustable actuation points, and Rapid Trigger technology. However, these are far from the only interesting features of the model. So, what makes the ROG Falchion Ace HFX stand out, what are its unique features, and why should you pay attention to it? I’ll go into more detail in the review.
Specifications
- Model: ROG Falchion Ace HFX
- Format: 65%
- Connection: wired (USB-C to USB-A)
- Switches: ROG HFX magnetic switches
- Maximum polling frequency: 8000 Hz
- Anti-Ghosting: N Key Rollover
- Construction: 5-layer damping and silicone inserts (Gasket Mount)
- Keycaps: two-component ROG PBT keycaps or ROG ABS keycaps with UV coating (depending on region)
- Backlighting: RGB compatible with ASUS Aura Sync
- Proprietary software: ASUS Armory Crate
- Built-in memory: 5 programmable profiles
- Multifunctional button and touchpad: volume control, media control, backlight control, key trigger point control, custom settings
- Cable: removable USB-A to USB-C braided cable
- Case material: plastic, metal
- Dimensions: 315×115×35 mm
- Weight: 643 g (without cable)
- Key features and technologies: ultra-compact format, two USB-C ports, multifunctional button and touchpad, pre-lubricated switches and stabilizers, magnetic switches, key trigger point adjustment, Rapid Trigger switch, Speed Tap mode, 8000 Hz sampling rate, on-the-fly macro recording
- Package contents: keyboard, dust cover for the keyboard, removable USB-A to USB-C cable, capacitor puller, alternative Ctrl key, quick start guide, warranty booklet, ROG branded stickers
Positioning and price
As you’ve probably gathered by now, the ROG Falchion series of ultra-compact keyboards is currently represented by four models: ROG Falchion, ROG Falchion Ace, ROG Falchion RX Low Profile, and the new ROG Falchion Ace HFX. The latest model can be considered a direct successor to the low-profile RX Low Profile version. The new keyboard maintains the same format, design, and touch panel for adjusting volume, lighting, and multimedia controls. The key differences include full-size keycaps, magnetic switches, an 8000 Hz polling rate, and a wired-only connection. As of now, the ROG Falchion Ace HFX is the only ASUS keyboard equipped with magnetic switches.
The price of the model on the official ASUS website is $216 / €206.
Package contents
The keyboard is delivered in a small branded cardboard box with a red and black design characteristic of the ROG series. In addition to the keyboard itself, the package includes:
- dust cover for the keyboard
- removable USB-A to USB-C cable
- puller for keycaps
- alternative Ctrl key
- quick start guide
- warranty booklet
- ROG branded stickers
The removable cable is covered in fabric and is about 1.8 meters long, offering good flexibility and the ability to retain its shape. The keycap puller is plastic and quite basic. While it’s functional, in my opinion, metal pullers with long grips are much more convenient. The additional Ctrl key is a standard one. Out of the box, the keyboard comes with a key featuring the Microsoft Copilot logo in place of the Ctrl key. The set also includes standard ROG stickers, which are the same ones ASUS includes with most of their devices.
The dust cover is the one standout feature in the package. It’s exactly the same cover that came with the previous RX Low Profile model, and nearly identical to the one included in earlier versions of the ROG Falchion lineup. It’s made of solid, thick plastic with a textured design, featuring the logo, brand name, and four rubberized feet on top, along with a rubberized base inside.
The cover can be used to cover the keyboard when it’s not in use, or you can simply place it underneath the keyboard while you’re working. It’s actually quite a handy feature, especially if you have pets at home. It helps protect the keyboard from dust, debris, and even fur, keeping it clean and in good condition.
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Design, ergonomics, build quality
The design of the new ROG Falchion Ace HFX closely mirrors the design of its predecessor, the ROG Falchion RX Low Profile. It maintains the same 65% layout, the same sensor panel with a multifunctional button on the top edge, and the same lighting strip with the “REPUBLIC OF GAMERS” logo. The main differences are the standard Cherry Profile keycaps, a few elements on the top edge, and the color. While the RX Low Profile was only available in white, the Ace HFX comes exclusively in black. This change gives the Ace HFX a more classic, sleek aesthetic, making it even more appealing to those who prefer a darker look for their workspace.
The majority of the ROG Falchion Ace HFX’s body, like its predecessor, is made from high-quality matte plastic. The top part of the chassis, which sits directly under the keys, is metal.
The internal design features a five-layer damping system and special flexible inserts (Gasket Mount) for a more comfortable and quieter typing experience. This includes silicone foam, PORON switch pads, PORON sound-absorbing foam, a silicone gasket with flexible inserts, and a dedicated silicone strip. A more detailed view of the internal construction can be seen in the screenshot below.
The keyboard has gained a few millimeters in size (315×115×35 mm) compared to the previous model, though this change is barely noticeable visually. The weight has also increased slightly, now at 643 g.
The layout remains unchanged, using the familiar ANSI standard. However, it’s worth noting that ASUS has managed to fit a 65% keyboard into a 60% form factor. Naturally, this has involved some compromises. For instance, the ROG Falchion Ace HFX, like its predecessors, has removed not only the NumPad but also the F1-F12 keys. Their functions are now accessed through a combination of the Fn key and the number row.
As for the key legends, they are printed in the signature ROG font. It’s worth mentioning that at an angle and without backlighting, they are not very visible on the black keycaps. However, with the backlight on, even at 50% brightness, the issue is entirely resolved. Regarding Ukrainian characters, they are not included. The ROG Falchion Ace HFX will only be available with English letters. Personally, I don’t see this as a problem. Keycaps can always be replaced, or additional symbols can be engraved on them. Alternatively, as I chose, you can simply get used to the English layout and type by feel. From my own experience, I can say that it’s entirely doable.
The keycaps come in two variants: two-piece ROG PBT or ABS with UV coating. According to the official ASUS website, the material of the keycaps depends on the region.
The keyboard I received for review came with PBT keycaps, and I believe this will be the most common variant available for sale. However, I have also tried ABS keycaps with UV coating on other ASUS keyboard models, and I can say that they are great as well. They even provide a slightly different typing experience compared to the usual PBT keycaps. As for the quality of the keycaps themselves, there are no complaints. The surface of the keys is pleasantly textured, and the thick PBT plastic is solid. Overall, everything is in order.
Підсвічування, як завжди в ASUS, чудове. Яскраве, соковите, з купою різних ефектів та можливістю синхронізації з іншими девайсами ASUS через Aura Sync.
Above the keys, there’s the signature “REPUBLIC OF GAMER” text along with decorative lines, all of which are also backlit like the keys. When adjusting settings via the touch panel, these lines turn into indicators that reflect changes in real time. The overall effect is quite stylish and unique, adding a nice visual touch to the design.
On the sides of the “REPUBLIC OF GAMER” text, there are indicators. On the left, you’ll find the indicator for the touch panel modes: volume, media control, backlighting, key actuation point, and custom settings.
Перемикаються режими за допомогою спеціальної мультифункціональної кнопки, яка розташована на верхній грані клавіатури. Тут же знаходиться й сама сенсорна панель.
To the right of the “REPUBLIC OF GAMER” text, there are indicators for Caps Lock, Win key lock, and the Rapid Trigger mode. The Rapid Trigger mode is activated using a dedicated switch located on the right side of the top edge of the keyboard. We will discuss what Rapid Trigger is, how it works, and its purpose a little later.
On the top edge of the keyboard, in addition to the multifunctional button, the touch panel, and the Rapid Trigger switch, you will also notice two TYPE-C ports on either side and a unique switch. As you might have guessed, the keyboard can simultaneously connect to two PCs, and you can easily switch between them on the fly using this switch. Alternatively, you can simply plug the cable into the side of the keyboard that is most convenient for you.
On the bottom of the keyboard, there are three rubberized pads—one long pad covering the entire length and two smaller ones on the sides. The feet are double-layered, with rubber surfaces at the ends for better stability. As you might have guessed, the feet are plastic. So, if you lose the next game, it’s highly advised not to hit the keyboard. In terms of stability, the device stays firmly on the desk, both with and without the feet extended.
The build quality of the device is excellent. Nothing squeaks or rattles, and the construction feels solid and monolithic. The ergonomics are also top-notch. The keyboard is very compact and takes up minimal space on the desk. The only point I personally found debatable is the absence of the F1-F12 keys, but that’s a subjective opinion I’ll expand on in the conclusion. Everything else is top-tier, and there’s really nothing more to add.
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Switches, stabilizers, typing
The keyboard is equipped with proprietary ROG HFX magnetic switches, which offer precise and quick response times, allowing users to adjust the actuation point from 0.1 to 4 mm. The switches are rated for 100 million keystrokes. The maximum key travel is 4 mm, with an initial actuation force of 40 g and a full actuation force of 55 g.
All switches come pre-lubed, which is noticeable during typing. As for the design and materials of the switches, these are clearly displayed in the screenshot below.
The stabilizers on the ROG Falchion Ace HFX are excellent. They are also pre-lubed and provide great stability for the longer keys. The keys press smoothly and produce a soft, ASMR-like sound. There is no feeling of sandiness, rattling, or spring pinging during key presses.
Typing on the ROG Falchion Ace HFX is fantastic. The key presses are firm yet soft, with a very pleasant sound and tactile feedback. The long keys are well-stabilized. There’s no need to go into too much detail about the typing experience—it’s better to hear the keyboard for yourself, and you’ll understand it immediately.
Key features and capabilities
Before diving into the proprietary software and keyboard settings, let’s take a closer look at its key features and capabilities, starting with the main highlight—the magnetic switches.
What’s the advantage of magnetic switches? Unlike traditional mechanical switches, magnetic switches use a magnetic field to register key presses almost instantly. One of their key benefits is the high precision and quick response time. Magnetic switches also allow for customizable actuation points. In the case of the ROG Falchion Ace HFX, the actuation point can be adjusted anywhere between 0.1 and 4 mm.
For example, for typing, you can configure the keyboard so that the keys register with light presses. For gaming, you can set it to a deeper actuation. Alternatively, you could create a mixed setup—light presses on WASD and deeper actuation on the spacebar. It’s all customizable based on personal preference. The key feature here is that you can adjust the actuation point for each individual key, allowing for a tailored experience on a per-key basis.
Magnetic switches also enable the implementation of the Rapid Trigger technology in the keyboard. This mode allows for much faster key presses compared to standard mechanical switches, making repeated presses possible at speeds that would be physically impossible on traditional keyboards. The reason is that regular mechanical switches require returning to a specific point before they can register another press. In contrast, magnetic switches with the Rapid Trigger mode reset instantly, allowing for quicker repeat key registrations.
Where can this technology be useful? In FPS shooters, for example, when actively strafing. With Rapid Trigger, you can strafe quickly without fully releasing the keys. Essentially, it allows for faster in-game movements and actions in general, making it beneficial in fast-paced gaming scenarios.
In the ROG Falchion Ace HFX, there is a dedicated switch on the chassis to activate the Rapid Trigger mode. By default, flipping this switch immediately enables the Rapid Trigger for the WASD keys. For other keys, the Rapid Trigger can be customized through the proprietary Armoury Crate software, which we will explore in the next section.
Another useful feature of the magnetic switches is Dynamic Keystrokes (DKS). This allows you to assign up to four different functions to a single key, depending on how deeply it’s pressed. For example, a light press could trigger normal walking, a medium press could activate sprinting, and a full press could initiate a tactical speed run in games like COD BO6 or Battlefield 2024. This kind of functionality is impossible to achieve on keyboards with traditional mechanical switches.
Another useful feature to note is Mod Tap (MT), which allows you to assign different actions based on whether a key is tapped briefly or held down. For example, with this feature, you can press the F1-F12 keys simply by holding down the number row keys, rather than using the Fn+ combination.
Another interesting feature that could be useful for gamers is the Speed Tap mode. When activated, this mode gives priority to the most recently pressed key in a sequence, even if the previous key hasn’t been released yet. This feature doesn’t require magnetic switches; it’s available on keyboards with standard mechanical switches as well. It’s an intriguing addition that can be quite helpful in certain situations. A simple example: you run out from behind a corner and find yourself facing a group of enemies, and in a firefight, your chances of winning are slim. A rational solution in this case would be to quickly retreat behind the corner and set up an ambush. With Speed Tap activated, the keyboard will register the “back” key press even if the “forward” key hasn’t been released for some reason. Essentially, this mode helps minimize misclicks and accidental key presses that are common during intense and fast-paced gaming sessions.
One final notable feature of the ROG Falchion Ace HFX is its 8000 Hz polling rate. High polling rates are commonly found in gaming mice, and now gaming keyboards are following suit. At 8000 Hz, the data sent from the keyboard is updated eight times more frequently than at the standard 1000 Hz rate. The result is reduced input lag and better control. It’s worth noting, however, that the difference is measured in milliseconds, and most gamers may not notice a significant improvement. Nevertheless, having 8K support is a positive feature. ASUS also claims on their official website that the ROG Falchion Ace HFX is faster than comparable 8K-supporting keyboards. I can’t verify this claim, so I’ll leave it at that.
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Proprietary application
Advanced keyboard settings are managed through the ASUS Armoury Crate software. There are two versions of the program: the full Armoury Crate, which supports all ASUS devices, and a simplified version called Armoury Crate Gear, focused solely on keyboard settings. If your only ASUS device is the keyboard, you can get by with the simplified Armoury Crate Gear. It offers the same functionality, except for lighting synchronization with other devices via Aura Sync. In my case, I have the full Armoury Crate installed on my PC, so I’ll demonstrate all the keyboard settings using that version.
When the keyboard is first connected to the PC, the application automatically initializes the device and prepares it for use. After this, the keyboard will immediately appear in the device list.
In the settings, you’ll find that all the options are divided into 7 tabs: Keys, Analog Trigger, Touch Panel, Lighting, Performance, Armoury Crate Gear, and Firmware.
In the “Keys” menu, you can configure the keyboard’s keys. Here, you can reassign them, disable them, assign macros, and various Windows functions. You can also assign Dynamic Keystroke (DKS) and Mod Tap (MT) functions to the keys. Additionally, this menu lets you view a list of hotkeys. There are many available settings for the keys, so instead of listing everything, I’ll show some examples visually in screenshots.
Next is the most interesting menu, “Analog Trigger.” Here, you can adjust the actuation point for the keys, set the upper and lower dead zones, and configure the Rapid Trigger and Speed Tap modes.
In the “Touchpad” menu, you can view, enable, or disable the standard touchpad functions. Additionally, you can set custom configurations for it (the 5th mode).
In the “Lighting” menu, you can adjust the keyboard’s backlighting. There are 9 preset effects to choose from, or you can sync the backlighting with other ASUS devices via Aura Sync. You can also create a custom effect using Aura Creator. One of the new features is the “Analog Effect.” When enabled, the pressed key and its neighboring keys will display lighting effects with varying brightness and range, depending on the depth of the key press. This setting wasn’t available before, as it is exclusive to magnetic switches.
In the “Performance” menu, you can adjust the keyboard’s polling rate. There are only two options available: 1000 Hz and 8000 Hz. Honestly, there’s little reason to lower the polling rate since the keyboard is wired, so it’s probably best to leave it at the higher setting.
In the “Armoury Crate Gear” menu, there’s only a link button that leads to the official ASUS website. However, it directs you to the homepage instead of the specific page for downloading the software. To save you time searching, here’s the direct link to download Armoury Crate Gear. As mentioned earlier in this section, this is a simplified version of Armoury Crate, focused solely on keyboard settings. If you don’t have other ASUS devices, you can just install this version instead of the full Armoury Crate.
The last menu is “Firmware.” Here, you can check if the current firmware of the keyboard is up to date and download a new version if one is available.
Like many ASUS devices, the ROG Falchion Ace HFX has built-in memory with 5 independent programmable profiles, allowing you to switch between them on the fly. This means you can configure the keyboard to your preferences in Armoury Crate or Armoury Crate Gear, and then use it with all your settings on other PCs without needing the software.
Conclusions
In conclusion, the ASUS ROG Falchion Ace HFX proves to be an excellent keyboard. It retains the ultra-compact size and original stylish design of its predecessors while introducing a range of modern features that are only available on keyboards with magnetic switches. Faster response times, customizable actuation points, Rapid Trigger, Dynamic Keystrokes, and more. And let’s not forget about typing, which is superb on the ROG Falchion Ace HFX.
As for the price, I personally believe it is quite reasonable. When looking at the segment of magnetic keyboards in general, you’ll notice they all cost around the same. Of course, there are cheaper models available, but more expensive ones are also easy to find. So, regarding the price, I can only say one thing — it’s fair and acceptable.
As for the downsides and controversial points, if we’re being objective, I can’t really highlight anything major. However, if I express my personal subjective opinion, I do feel the lack of F1-F12 keys and quick access to them. In situations where F-keys aren’t needed (like in COD BO6, for instance), the keyboard performs wonderfully. But in other scenarios (work, certain single-player games, Diablo II Resurrected), their absence is noticeable. Mod Tap can somewhat address this issue, but it’s still not the same. That’s why I have a bit of a request-suggestion for ASUS: how about a new model, ROG Azoth or ROG Azoth Extreme, with the same magnetic switches? I think that would be pretty cool too.
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