GXT 840 Myra Gaming Keyboard


The product image is for demonstration purposes only. Various versions are available which may differ from this representation.

Gaming keyboard with 3 color LED illumination and 5 programmable macro keys

This product is no longer available in the current Trust assortment.
View all versions

Key features

  • Full size layout with 5 extra programmable macro keys
  • 3 Color LED illumination with adjustable brightness
  • Anti-Ghosting: Up to 8 simultaneous key pressings
  • Game mode switch; directly disable windows key.
  • 12 direct access media keys
  • 1.8m Braided cable


Key technology membrane
Height of main product (in mm) 34 mm
Width of main product (in mm) 213 mm
Depth of main product (in mm) 513 mm
Weight of main unit 144 g
Full Size keyboard yes
Ergonomic design no
Connection type wired
Bluetooth no
USB version 2.0
Connector type USB
Spill-proof no
Silent keys no
On-board memory yes
Wrist support yes
Software no
Designed for gaming yes
Gaming mode yes
Backlight yes
Backlight colours Red Purple Blue
Key illumination yes
Key colours Red Purple Blue
Keyboard layout QWERTY
Power source USB
Compatible Device Types pc, laptop, gaming console
Compatible Consoles PS4, Xbox One
Compatible Software Platforms Windows, Mac OS, Chrome OS
Numeric Key Pad yes
Trackpad no
Media keys 12
Macro keys yes
Programmable keys yes
Special keys FN keys
Number of keys 110
Anti-Ghosting Up to 8 simultaneous key pressings
Macro programming yes
Indicators Caps-lock, Num-lock, Scroll-lock

Extra information

General Item number:
EAN code:
1   year
Package contents Gaming keyboard User guide Gaming sticker
System requirements PC / Laptop with USB port Windows 10, 8, or 7

Other versions

Name Item number EAN code
GXT 840 Myra Gaming Keyboard DE 21974 8713439219746
GXT 840 Myra Gaming Keyboard FR 21975 8713439219753
GXT 840 Myra Gaming Keyboard IT 21976 8713439219760
GXT 840 Myra Gaming Keyboard ES 21977 8713439219777
GXT 840 Myra Gaming Keyboard HU 22537 8713439225372
GXT 840 Myra Gaming Keyboard CZ/SK 22538 8713439225389
GXT 840 Myra Gaming Keyboard UK 22682 8713439226829
GXT 840 Myra Gaming Keyboard TR 22771 8713439227710
GXT 840 Myra Gaming Keyboard CH 23005 8713439230055
GXT 840 Myra Gaming Keyboard BE 23487 8713439234879




Select type

Select your language
Extended leaflet

Select your language

Frequently Asked Questions

Installation and configuration

I can't find the driver/software? Where is it?

This product has no software.
You program the keyboard via the keyboard memory.
Instructions can be found in the manual.


Can I use a FN-key in a macro?

It is not possible to use a FN-key in a macro.

How do I use the lighting?

To use the lighting press the FN-key together with the appropriate key designated for the lighting setting that you want to change (such as backlight mode or brightness).

Please refer to the video on the product page as well as the manual in the downloads section of the product page for more information on using the lighting.

How do I record a macro?

Record Macro:
- Press “Rec” (Leds blink slow)
- Press “G1/G5” (Leds blink fast)
- Record macro (Max 65 keys)
- Press “Rec”

Clear Macro: Press “Rec”, select “G1/G5” and press “Rec” again

Adjust macro play speed (Fast/Normal): Press “FN” + “Q”

How do I change the colour from breathing (changing) to normal and vice versa?

Press FN + the key marked with the bulb surrounded by the arrows (next to the AltGr key).

Consult the manual (available in the downloads section) for more information on the keys and the lighting options.

Solving problems

Keys are not working and indicator lights are blinking

Press “REC” to get out of record mode. The keys will function as normal again.

Spacebar + mouse drag not working

Press “FN” + “Q” to change key speed function.

I get the wrong letters and/or symbols when typing on my computer.

If your keyboard isn't typing the correct characters, you may have the incorrect input language selected.
Please check the language preference settings of your system. If the correct language is not present, add this language to the system.
If you use more than one language on your system, make sure to select the correct one.

Set the correct language as explained in the keyboard settings page

My keys act strangely, as if I have pressed the keys 100x in a second (i.e. spammed the keys). What has happened?

Perhaps you have accidentally activated the rapid fire function by pressing FN + Q.
If you press FN + Q again, it will be deactivated.

The WASD keys are swapped with the arrow keys. How can I swap them back?

If you accidentally swapped the WASD keys with the arrow keys, try the following to swap them back.

- FN + W
- ALT + W  

Note: on Azerty keyboards: replace the W with the Z.

Sometimes letters are missing when typing.

  • Clean your keyboard from dust and crumbles. 

Where is your service center? Or where can I send my product to be repaired?

Unfortunately, we do not have service centers to repair products.
A defective product should be replaced by your point of purchase during the warranty period.

My product is faulty. What do I do?

We offer a 'return to retailer' warranty on our products. In case of a defect, you can return the product to your retailer with failure description, proof of purchase and all accessories. During the warranty period you will receive a replacement product from the retailer if available. For full warranty conditions you can consult: https://www.trust.com/support/warranty


Can I use this keyboard/mouse on Nintedo Switch?

This particular product has been developed for use with computers only. 

To our knowlegde, you can't use a keyboard/mouse on the Switch to play games like you can on a computer, as it's not a supported game controller.

However, you can use a USB-keyboard, as long as the Switch is docked, by plugging it into the USB port on the dock, for text entry (but not for gameplay).

To play games using a keyboard/mouse on the Switch, you would need to purchase some extra peripherals.

Can I use this keyboard/mouse on PS4?

Although our keyboards and mice are designed for use with computers, they can be used on PS4. However please note, most PS4 games do not support a keyboard and mouse.

When using a (wired) keyboard or mouse with a PS4, make sure it connects well with the PS4. If the PS4 has a connection on the back, connect the keyboard/mouse to the USB-connection on the back of the PS4. Or alternatively use an extension cable or USB hub.

Can I use this keyboard/mouse on Xbox One?

You can use our mice and keyboards on the Xbox One.

Please note that Xbox One supports the use of mouse and keyboard in some games and apps, but it doesn’t work for every game or app. The game or app publisher must enable this feature for their content.

For more information, consult the Xbox support website via https://support.xbox.com/help/Hardware-Network/accessories/mouse-keyboard.


Warranty conditions
  • Trust offers a warranty to the original purchaser from an authorized retailer.
  • Your Trust product is guaranteed under the terms and conditions of this warranty against manufacturing defects for a period of one (1) year* from the date of original purchase, if purchased from an official retailer.
    • *In EU, there is a statutory minimum warranty period of 2 years on every product we sell.
  • In case of defect, return the product to your retailer with failure description, valid proof of purchase and all accessories.
  • During the warranty period you will receive a replacement product from the retailer if available.
  • Warranty will be void in cases of opened products, physical damage, misuse, modification, repair by unauthorised persons, carelessness and using the product for other purpose than its intended use.
  • Exclusions of warranty:
    • Damage caused by accidents or disasters, such as fire, flood, earthquake, war, vandalism or theft.
    • Incompatibility with other hardware/software not defined as minimum system requirements.
    • Accessories such as batteries and fuses.
  • In no event shall the manufacturer be liable for any consequential or incidental damages, including any loss of business profits or any other commercial damages, arising out of the use of its product.


Contact us: Ask a question to the helpdesk


Please check our FAQs first, chances are you'll find the answer there.

Couldn't find the answer in the FAQs? Fill out the form below with as much information as possible and one of our help-desk staff will respond at the earliest opportunity. Our messages are answered in the order they are received.

After submitting the form a confirmation message will be displayed with your reference number. The confirmation will be sent to your email address at the same time as well. If you have not received the confirmation message, please check your spam or junk mail folder. Otherwise, fill out the form again with your correct e-mail address.

Reason for contact




Your profile


Product details


Where to buy

Where to buy

We don't sell our products online ourselves. You can purchase our products via our retailers such as the large online retailers listed below per country. Furthermore you can find our products in many local shops.

Go to our online retailer shops overview