BenQ Zowie Celeritas II Keyboard Review and Features Best Gaming Keyboard

The second keyboard in the BenQ Zowie Celeritas series, the Zowie Celeritas II, is a unique mechanical gaming keyboard because it uses Flaretech optical switches instead of Cherry MX switches.


The Zowie Celeritas IIZowie Celeritas II is a bit on the 1.89Kg heavy end. The palm rest is so small it doesn’t feel comfortable. It’s small enough to have your wrist on the table for 90% of the time while using the keyboard. There is also no option to replace.

Unlike most other keyboards, the Zowie Celeritas II doesn’t have keyboard legs that can be increased in height. However, the build is so thick and sturdy that it is already in a high position compared to other keyboards. The Zowie Celeritas II has no RGB lighting and instead comes with a red LED backlight key.

The Caps Lock, Scroll Lock, and Num Lock buttons have an additional blue light that lights up when powered on. Oddly enough, the’backslash’ key usually above the’Enter’ key is between the right shift key and the slash button. This little replacement was very annoying because I had to keep typing’|’ instead of’?’ every time and revising it over and over again.

Build quality

The Celeritas II is very sturdy. I’m also pretty heavy so it feels like a much more premium product. The case is basically divided into two parts. It’s the top part that gives the cover to the top panel, and the side and bottom parts that are inserted almost smoothly at the top. Due to this construction method, the Celeritas II is very strong and sturdy.

The only disappointing thing is the thin cable that connects the keyboard to the PC. It doesn’t affect performance, but it’s the only one that feels cheap. Braided cables may have gone a long way in adding a premium feel.


On the bright side, the Celeritas II fits the most important name. In Overwatch and StarCraft: Remastered, the resilient and responsive keys allowed you to shoot down enemies and build your army without problems. I doubt that has helped me play better than the standard set of Cherry Keys, but at least not bad.

The keyboard was also very suitable for single player adventures. There are no special tricks for using Celeritas II. It is well built and works well for a variety of games.


  • Size (cm): 44.2 x 17 x 3.8
  • Weight (kg): 1.89
  • Lighting: Red LED backlight
  • Keyboard Type-Optical Mechanical
  • Switch-Optical Adomax Flaretech
  • Keystrokes (average life) – 100 million
  • Unattended-Yes
  • Anti Ghosting-NKRO
  • Media Function Key-Yes
  • Interface: USB + PS2
  • Important Travel: 1.9mm
  • Polling rate: 1000Hz (default)
  • N-key rollover: yes
  • Operating force: 33g initial, 55g +/- peak
  • Real-time response: 1x, 2x, 4x, 8x over PS/2
  • Working voltage: 5V±10%
  • Operating current: 350mA or less
  • Supported OS: Windows XP, 7, 8.1, 10 32/64bit


1. Adomax Flaretech Optical Switch

The Zowie Celeritas II uses an optical switch instead of the popular Cherry MX switch commonly used in gaming keyboards. Optical switches are custom made by Adomax Flaretech. The most surprising feature of the optical switch is that it is designed to disable double key presses.

Double key press is a very common annoyance for gamers and it ruins a lot of games. Optical switches have been customized by Flaretech for this specific purpose.

The operating point of the optical switch is lower than that of the Cherry MX Red switch. This means it’s smoother and faster than the Cherry MX Red switches.

2. Adomax Flaretech Optical Switch

However, when I played the Dota 2 using the keyboard, the switch felt exactly like the Cherry MX Red switch felt. I could see a very small difference in the feeling between the two. Cherry MX Red switches are the most popular in the gamer market, so most users will be satisfied with the switches.

BenQ claims to have done a lot of testing with the CS:GO player before launching the product. We wanted to create a keyboard that would improve gameplay while addressing the current issue of CS players. Specially made for CS: GO.

So many features may not make sense or fit into the “common sense” of today’s keyboards. I’ve already been asked by many users and reviewers-in the product guide. So if you’re a CS: GO player, you should definitely try Celeritas II.

3. Optimal distance before travel

The Celeritas II’s keys create an optimally accurate’distance before travel’. The pre-travel distance is the distance the key travels before activating the signal. The Celeritas II’s pre-travel tolerance is smaller than that of a regular mechanical keyboard, so all keystrokes feel relatively consistent on the Celeritas II. Because of this feature, the Celeritas II is much faster than other mechanical keyboards, and it can take time to get used to it.

4. Consistent keystroke

This is one of the best features of this keyboard. The Celeritas II’s keys use high-quality iron springs that help generate consistent keystrokes when used. The term’consistent keystroke’ means that the actuation force of the switch is linear.

The height of the Celeritas II increases linearly in weight per millimeter per distance traveled. The keys on other mechanical keyboards are lighter at the beginning and heavier at the end, or heavier at the beginning and lighter at the end.

You can hardly notice the difference when you try the keyboard, but it becomes very clear when compared to other keyboards side by side. BenQ claims that warming up is easier on the Celeritas II, and that your fingers can play longer without fatigue.

5. RTR function with PS/2 interface

RTR stands for real-time response. This feature allows you to type through the keyboard at a much faster rate than usual. Watch the video below to better understand the purpose of the RTR function. This feature can be very useful for RTS players where the APM is so high that the keyboard cannot keep up with the player’s speed.

The RTR function can only be activated while using the PS/2 interface. The Celeritas II comes with a USB-PS/2 adapter as shown in the opening section above.

The differences between USB and PS/2 are as follows: USB continuously fetches information from the motherboard to the device even if the user does nothing, whereas on the PS/2 the signal is transmitted only at the push of a button.

6. Simplicity

An interesting feature of the Zowie Celeritas II is its simplicity. No need to install any software/drivers to start using the keyboard. Plug and play.In other words, the device’s settings are the same as when it was last used.

You don’t need to load a profile or anything of that kind. But this also means you can’t customize the keyboard in any way.

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