Tips to help you get started
- Get the most out of your keyboard with Razer Synapse
- Create macros in Razer Synapse to use on a keyboard
- Configure lighting on your Razer keyboard with Razer Synapse
- Install or upgrade the Razer Chroma App
You can view the video below for instructions or review a copy of the video transcript.
Upgrade the core of your battlestation with the Razer BlackWidow V4 X—an advanced mechanical gaming keyboard crafted for extended control. Execute advanced commands and shortcuts instantly with a set of macro and media keys, as you take your immersion to the next level with Razer Chroma™ RGB.

Device Layout

- On-the-fly macro record key
- Gaming mode key
- Backlight control keys
- Sleep mode key
- Multi-function roller
- LED indicators
- Media keys
- Dedicated macro keys
- Kickstand
- Cable routing options
Full Technical Specifications
| Category | Specification |
|---|---|
| Variation | Razer BlackWidow V4 X |
| Keyboard Type | Mechanical Gaming Keyboard with Razer Chroma™ RGB |
| Available switch type | Razer™ Mechanical Switches (Linear/Clicky) |
| RGB Backlighting | Razer Chroma™ RGB |
| Keycaps | Doubleshot ABS |
| Form Factor | Full-size |
| Anti-Ghosting | Yes |
| Gaming Mode | Yes |
| Fully Programmable Keys | Yes |
| Cable Routing Options | Yes |
| Razer Synapse | Razer Synapse 4 |
| On-the-fly Macro Recording | Yes |
| Polling Rate | Up to 1000 Hz Ultrapolling |
| Dedicated Media Keys | No |
| USB Pass-Through | No |
| Wrist Rest | No |
| Cable Type | Braided fiber cable |
| Color |
|
| Approx. Dimension |
|
| Approx. Weight | 2.51 lbs / 1136.3 g |
How To
How do I get my Razer device detected in Razer Synapse?
- Restart your PC if you have just installed Razer Synapse.
- Install the latest Razer Synapse updates.
- If your device is still not detected, see How to get your Razer device detected in Razer Synapse.
You can view the video below for instructions or review a copy of the video transcript.
How do I remap keys or buttons on a Razer keyboard?
- Open Razer Synapse.
- Select the device that you want to customize.
- Click on the key or button you want to remap.
- Select the type of function you want to assign to the key or button.
- Specify the key or function to assign.
- Click “Save”.
See the answer below for detailed instructions.
How do I configure and change the LED lighting color on a Razer keyboard?
Change and customize the Chroma lighting on your Chroma-enabled device through its compatible Razer Synapse software.
See the answer below for detailed instructions.
How do I turn the LEDs on or off on the Razer keyboard when the computer is on standby?
Configure the lighting of your keyboard's LEDs through Razer Synapse.
See the answer below for detailed instructions.
How do I replace keycaps on a Razer keyboard?
- Pull the keycap out using a keycap puller.
- Install a replacement keycap by firmly pushing the keycap in place.
You can view the video below for instructions or review a copy of the video transcript.
See the answer below for detailed instructions.
How do I fit Razer Mechanical Switches into my keyboard?
Ensure your keyboard circuit board supports either 3-pin or 5-pin switches. Also, make sure the switch copper pins are not bent.
How do I maintain optimal key performance and responsiveness on my Razer keyboard?
- Use a clean, microfiber cloth and compressed air to clean your Razer keyboard or touchpad from dirt or residues.
- Update the drivers of your Razer device.
- Update your Razer Synapse software and Windows OS.
- Plug the Razer device directly into the computer and not into a USB hub. If it is already plugged into the computer, try a different USB port.
Note:
- For Razer Keyboards with two USB connections, make sure that both are plugged directly into the computer.
- For desktops, use the USB ports at the back panel.
You can view the video below for instructions or review a copy of the video transcript.
See the answer below for detailed instructions.
How do I ensure a stable USB connection for my Razer keyboard?
Plug the Razer device directly into the computer and not into a USB hub. If it is already plugged into the computer, try a different USB port.
Note:
- For Razer Keyboards with two USB connections, make sure both are plugged directly into the computer.
- For desktops, use the USB ports at the back panel.
See the answer below for more details.
How do I customize and synchronize lighting colors across my Razer devices?
- Update your Razer Synapse to the latest version.
- Perform a repair or clean re-installation of Razer Synapse.
- Disable the Dynamic Lighting feature on your Windows 11 23H2 and above system.
See the answers below for more details.
How do I ensure my Razer keyboard’s macros, LEDs, and Chroma lighting function properly?
- Update the drivers on your Razer device.
- Update Razer Synapse and ensure Windows OS has the latest updates.
- Plug the Razer device directly into the computer and not into a USB hub. If it is already directly plugged into the computer, try a different USB port.
Note:
- For Razer Keyboards with 2 USB connections, make sure both are plugged directly into the computer.
- For desktops, use the USB ports at the back panel.
See the answer below for detailed instructions.
General Information
What is On-the-Fly Macro Recording on Razer keyboards?
On-the-Fly Macro Recording allows users to record lengthy macros in the game, without having to access driver menus or other software. See the answer below for more details.
Can I use On-the-Fly Macro Recording without Razer Synapse?
No. On-the-Fly Macro Recording only works when Razer Synapse is installed and running in the background. See the answer below for more details.
Will the keys from the Razer PBT Keycap Upgrade Set fit the Razer BlackWidow V4 X?
Yes. The Razer PBT Keycap Upgrade Set is compatible with the Razer BlackWidow V4 X. However, the PBT Keycap Upgrade set does not come with keycaps for Dedicated Macro Keys.
Is the multi-function roller remappable?
Yes. The multi-function roller can be remapped to other functions with Razer Synapse.
Applicable Model:
Firmware Updater v1.03.00_r1
- https://rzr.to/vmnbaG | May 14, 2024
- Fixed Windows Dynamic Lighting effect issue for UK layout.
- Fixed lighting issue.
- Fixed key stuck issue.
Follow the detailed instructions below to run the updater on your device.
Step-by-step Process
Before you start
-
If using a laptop, ensure it is plugged into a wall outlet. Do not let it run on battery alone.
-
Save all files and close all programs.
-
Download the latest firmware update.
Update process
-
Run the updater.
-
Click "Yes" if the User Account Control window pops up to proceed.
-
Click "NEXT" to proceed. The updater will close all running Razer applications.

-
Connect the device to PC then click "UPDATE".

-
Wait until the update process is complete. Do not interrupt.

-
Click "CLOSE" once the update is complete.

Documentation
Language
User Guide (English)
English
User Guide (Spanish)
español
User Guide (French)
français
User Guide (German)
Deutsche
User Guide (Portuguese-Brazilian)
português
User Guide (Russian)
русский
User Guide (Traditional Chinese)
繁體中文
User Guide (Simplified Chinese)
简体中文
User Guide (Korean)
한국어
User Guide (Japanese)
日本語
Please see our warranty policy for a complete review of our warranty policy.
You are eligible for Limited Warranty support for the following periods of time commencing upon the date of retail purchase of your Product (Warranty Period).
Product
Warranty Period
2021 and Older Model Laptops
1 yeara
2022 and Newer Model Laptops
1 yeara
2-year limited battery warrantya
Razer Viper Mini Signature Edition
3 year
Razer Phone and Phone Accessories
1 year
Razer Edge Gaming Handhelds
1 year
Razer Mice
2 years
Razer Keyboards and Keypads
2 yearsb
Razer Huntsman Signature Edition
5 years
Razer Headsets, Earphones and Earbuds
2 yearsb
Razer Wireless Mouse and Mat Bundles
2 yearsb
Razer Mouse Mats
1 yearc
Razer Speaker Systems and Broadcaster Devices
1 year
Razer Controllers and Chargers
1 year
Razer Routers (except Singtel)
1 year
Razer Routers (Singtel)
2 years
Razer Monitors
1 year
Smart Watches and Eyewear
2 years
Razer Case Fans
2 years
Razer Liquid Cooling
2 years
Razer Power Supplies
5 years
Razer Fan and RGB Controllers
2 years
Razer Cases
1 year
Razer System Accessories
1 year
Razer Docks
1 year
Wearable Air Purifiers
1 year
Razer Gaming Accessories
1 yearc
Razer Rechargeable Batteries for Wireless Devices
1 yeard
Razer Gaming Chairs
3 yearse
Chair Frame, mechanisms and armrests
Up to 5 years
Mesh backing and seat pan
Up to 1 year
All new Products will have the Warranty Periods listed above, subject to applicable local law. Certain "end of life", sell out or discontinued Products may have a shorter Warranty Period; this will be clearly marked at the time of purchase and the given Warranty Period will be stated at that time. Refurbished Products purchased from Razer.com will have the lesser of a 1 year warranty period or the warranty period as stated above. Refurbished products not purchased from Razer.com will have a 90 day warranty period. If you are uncertain whether your Product is eligible for Limited Warranty support, please contact our support team for clarification.
Please note that third-party products may be covered by the product manufacturer's warranty and these warranty terms are exclusively provided by the product manufacturer. Razer does not offer a warranty for third-party products. If you need product or warranty support with your third-party product, please contact the product manufacturer. Please consult the product documentation provided by the product manufacturer for details.
If you are uncertain whether your Product is eligible for Limited Warranty support, please contact our support team for clarification.
Warranty Footnotes
- [a] If you are a customer outside of the U.S. and have validly purchased a Razer Extended Warranty for your product, the Warranty Period shall be extended for another one (1) year period, to be a total of two (2) years commencing upon the date of retail purchase of your Razer Product. The Razer Extended Warranty does not apply to batteries. Aside from the change to Warranty Period, the Razer Extended Warranty does not alter any other terms and conditions of the Limited Warranty.
- [b] Products purchased prior to October 1st, 2018 maintain the original 1 year warranty (keyboards with mechanical switches maintain original 2 year warranty).
- [c] Warranty period for Razer Firefly HyperFlux is 2 years.
- [d] Products purchased prior to October 1st, 2018 maintain the original 6 month warranty.
- [e] Limited Warranty: The Razer Iskur is free from defects in workmanship, materials and construction for three years from the date of purchase. In the event that a defect is found, the manufacturer will either repair or replace the defective item, at its discretion. Exclusions and Limitations: This Limited Warranty does not cover cosmetic damage, minor cosmetic abnormalities and normal wear and tear, including without limitation scratches, dents, discoloration and tears in the head pillow, seat cushion, PU leather, Armrest and stitches of the upholstery.
The following document filter provides a list of documents of conformity for Razer devices based on the model number provided.
No results found
View All
Before you start
-
If using a laptop, ensure it is plugged into a wall outlet. Do not let it run on battery alone.
-
Save all files and close all programs.
-
Download the latest firmware update.
Update process
-
Run the updater.
-
Click "Yes" if the User Account Control window pops up to proceed.
-
Click "NEXT" to proceed. The updater will close all running Razer applications.

-
Connect the device to PC then click "UPDATE".

-
Wait until the update process is complete. Do not interrupt.

-
Click "CLOSE" once the update is complete.

Documentation
Language
User Guide (English)
English
User Guide (Spanish)
español
User Guide (French)
français
User Guide (German)
Deutsche
User Guide (Portuguese-Brazilian)
português
User Guide (Russian)
русский
User Guide (Traditional Chinese)
繁體中文
User Guide (Simplified Chinese)
简体中文
User Guide (Korean)
한국어
User Guide (Japanese)
日本語
Please see our warranty policy for a complete review of our warranty policy.
You are eligible for Limited Warranty support for the following periods of time commencing upon the date of retail purchase of your Product (Warranty Period).
Product
Warranty Period
2021 and Older Model Laptops
1 yeara
2022 and Newer Model Laptops
1 yeara
2-year limited battery warrantya
Razer Viper Mini Signature Edition
3 year
Razer Phone and Phone Accessories
1 year
Razer Edge Gaming Handhelds
1 year
Razer Mice
2 years
Razer Keyboards and Keypads
2 yearsb
Razer Huntsman Signature Edition
5 years
Razer Headsets, Earphones and Earbuds
2 yearsb
Razer Wireless Mouse and Mat Bundles
2 yearsb
Razer Mouse Mats
1 yearc
Razer Speaker Systems and Broadcaster Devices
1 year
Razer Controllers and Chargers
1 year
Razer Routers (except Singtel)
1 year
Razer Routers (Singtel)
2 years
Razer Monitors
1 year
Smart Watches and Eyewear
2 years
Razer Case Fans
2 years
Razer Liquid Cooling
2 years
Razer Power Supplies
5 years
Razer Fan and RGB Controllers
2 years
Razer Cases
1 year
Razer System Accessories
1 year
Razer Docks
1 year
Wearable Air Purifiers
1 year
Razer Gaming Accessories
1 yearc
Razer Rechargeable Batteries for Wireless Devices
1 yeard
Razer Gaming Chairs
3 yearse
Chair Frame, mechanisms and armrests
Up to 5 years
Mesh backing and seat pan
Up to 1 year
All new Products will have the Warranty Periods listed above, subject to applicable local law. Certain "end of life", sell out or discontinued Products may have a shorter Warranty Period; this will be clearly marked at the time of purchase and the given Warranty Period will be stated at that time. Refurbished Products purchased from Razer.com will have the lesser of a 1 year warranty period or the warranty period as stated above. Refurbished products not purchased from Razer.com will have a 90 day warranty period. If you are uncertain whether your Product is eligible for Limited Warranty support, please contact our support team for clarification.
Please note that third-party products may be covered by the product manufacturer's warranty and these warranty terms are exclusively provided by the product manufacturer. Razer does not offer a warranty for third-party products. If you need product or warranty support with your third-party product, please contact the product manufacturer. Please consult the product documentation provided by the product manufacturer for details.
If you are uncertain whether your Product is eligible for Limited Warranty support, please contact our support team for clarification.
Warranty Footnotes
- [a] If you are a customer outside of the U.S. and have validly purchased a Razer Extended Warranty for your product, the Warranty Period shall be extended for another one (1) year period, to be a total of two (2) years commencing upon the date of retail purchase of your Razer Product. The Razer Extended Warranty does not apply to batteries. Aside from the change to Warranty Period, the Razer Extended Warranty does not alter any other terms and conditions of the Limited Warranty.
- [b] Products purchased prior to October 1st, 2018 maintain the original 1 year warranty (keyboards with mechanical switches maintain original 2 year warranty).
- [c] Warranty period for Razer Firefly HyperFlux is 2 years.
- [d] Products purchased prior to October 1st, 2018 maintain the original 6 month warranty.
- [e] Limited Warranty: The Razer Iskur is free from defects in workmanship, materials and construction for three years from the date of purchase. In the event that a defect is found, the manufacturer will either repair or replace the defective item, at its discretion. Exclusions and Limitations: This Limited Warranty does not cover cosmetic damage, minor cosmetic abnormalities and normal wear and tear, including without limitation scratches, dents, discoloration and tears in the head pillow, seat cushion, PU leather, Armrest and stitches of the upholstery.
The following document filter provides a list of documents of conformity for Razer devices based on the model number provided.
No results found
View All
Update process
-
Run the updater.
-
Click "Yes" if the User Account Control window pops up to proceed.
-
Click "NEXT" to proceed. The updater will close all running Razer applications.

-
Connect the device to PC then click "UPDATE".

-
Wait until the update process is complete. Do not interrupt.

-
Click "CLOSE" once the update is complete.

| Documentation | Language |
|---|---|
| User Guide (English) | English |
| User Guide (Spanish) | español |
| User Guide (French) | français |
| User Guide (German) | Deutsche |
| User Guide (Portuguese-Brazilian) | português |
| User Guide (Russian) | русский |
| User Guide (Traditional Chinese) | 繁體中文 |
| User Guide (Simplified Chinese) | 简体中文 |
| User Guide (Korean) | 한국어 |
| User Guide (Japanese) | 日本語 |
Please see our warranty policy for a complete review of our warranty policy.
You are eligible for Limited Warranty support for the following periods of time commencing upon the date of retail purchase of your Product (Warranty Period).
| Product | Warranty Period |
|---|---|
| 2021 and Older Model Laptops | 1 yeara |
| 2022 and Newer Model Laptops | 1 yeara 2-year limited battery warrantya |
| Razer Viper Mini Signature Edition | 3 year |
| Razer Phone and Phone Accessories | 1 year |
| Razer Edge Gaming Handhelds | 1 year |
| Razer Mice | 2 years |
| Razer Keyboards and Keypads | 2 yearsb |
| Razer Huntsman Signature Edition | 5 years |
| Razer Headsets, Earphones and Earbuds | 2 yearsb |
| Razer Wireless Mouse and Mat Bundles | 2 yearsb |
| Razer Mouse Mats | 1 yearc |
| Razer Speaker Systems and Broadcaster Devices | 1 year |
| Razer Controllers and Chargers | 1 year |
| Razer Routers (except Singtel) | 1 year |
| Razer Routers (Singtel) | 2 years |
| Razer Monitors | 1 year |
| Smart Watches and Eyewear | 2 years |
| Razer Case Fans | 2 years |
| Razer Liquid Cooling | 2 years |
| Razer Power Supplies | 5 years |
| Razer Fan and RGB Controllers | 2 years |
| Razer Cases | 1 year |
| Razer System Accessories | 1 year |
| Razer Docks | 1 year |
| Wearable Air Purifiers | 1 year |
| Razer Gaming Accessories | 1 yearc |
| Razer Rechargeable Batteries for Wireless Devices | 1 yeard |
| Razer Gaming Chairs | 3 yearse |
| Chair Frame, mechanisms and armrests | Up to 5 years |
| Mesh backing and seat pan | Up to 1 year |
All new Products will have the Warranty Periods listed above, subject to applicable local law. Certain "end of life", sell out or discontinued Products may have a shorter Warranty Period; this will be clearly marked at the time of purchase and the given Warranty Period will be stated at that time. Refurbished Products purchased from Razer.com will have the lesser of a 1 year warranty period or the warranty period as stated above. Refurbished products not purchased from Razer.com will have a 90 day warranty period. If you are uncertain whether your Product is eligible for Limited Warranty support, please contact our support team for clarification.
Please note that third-party products may be covered by the product manufacturer's warranty and these warranty terms are exclusively provided by the product manufacturer. Razer does not offer a warranty for third-party products. If you need product or warranty support with your third-party product, please contact the product manufacturer. Please consult the product documentation provided by the product manufacturer for details.
If you are uncertain whether your Product is eligible for Limited Warranty support, please contact our support team for clarification.
Warranty Footnotes
- [a] If you are a customer outside of the U.S. and have validly purchased a Razer Extended Warranty for your product, the Warranty Period shall be extended for another one (1) year period, to be a total of two (2) years commencing upon the date of retail purchase of your Razer Product. The Razer Extended Warranty does not apply to batteries. Aside from the change to Warranty Period, the Razer Extended Warranty does not alter any other terms and conditions of the Limited Warranty.
- [b] Products purchased prior to October 1st, 2018 maintain the original 1 year warranty (keyboards with mechanical switches maintain original 2 year warranty).
- [c] Warranty period for Razer Firefly HyperFlux is 2 years.
- [d] Products purchased prior to October 1st, 2018 maintain the original 6 month warranty.
- [e] Limited Warranty: The Razer Iskur is free from defects in workmanship, materials and construction for three years from the date of purchase. In the event that a defect is found, the manufacturer will either repair or replace the defective item, at its discretion. Exclusions and Limitations: This Limited Warranty does not cover cosmetic damage, minor cosmetic abnormalities and normal wear and tear, including without limitation scratches, dents, discoloration and tears in the head pillow, seat cushion, PU leather, Armrest and stitches of the upholstery.