Razer BlackWidow V4 75% | RZ03-0500 Support & FAQs

Updated: 04-Nov-2024 | Article ID: 13256

Manuals | Product Warranty | Product FAQs

For those who crave greater customization and immersion, satisfy your enthusiast needs with the Razer BlackWidow V4 75% — a compact, hot-swappable mechanical keyboard powered by Razer Chroma™ RGB. From installing new switches to creating unique lighting effects, shape it to way you love to play.

Razer BlackWidow V4 75% close-up shot

Device Layout

Razer BlackWidow V4 75% line image

  1. On-the-fly macro record key
  2. Gaming mode key
  3. Backlight control keys
  4. Volume control roller
  5. Multi-function button
  6. Mute button
  1. Sleep mode key
  2. Razer Chroma™ RGB underglow lighting
  3. USB 2.0 Type C port
  4. Kickstand
  5. Magnetic plush leatherette wrist rest

Full Technical Specifications

Category Specification
Variation Razer BlackWidow V4 75%
Keyboard Type Hot-swappable Mechanical Gaming Keyboard
Available switch type Razer™ Mechanical Switches (Tactile)
RGB Backlighting Razer Chroma™ RGB
Keycaps Doubleshot ABS
Form Factor 75% with function row and arrow keys
Anti-Ghosting Yes
Gaming Mode Yes
Fully Programmable Keys Yes
Cable Routing Options No
Razer Synapse Razer Synapse 3
On-the-fly Macro Recording Yes
Polling Rate Up to 8000 Hz Ultrapolling
Dedicated Media Keys Yes
USB Pass-Through No
Wrist Rest Magnetic plush leatherette wrist rest
Cable Type Detachable Type C cable
Approx. Dimension

Without wrist rest

  • L: 12.6 in / 321 mm
  • W: 6.1 in / 155.5 mm
  • H: 0.94 in / 24 mm

With wrist rest

  • L: 12.6 in / 321 mm
  • W: 9.5 in / 240.5 mm
  • H: 0.94 in / 24 mm
Approx. Weight

Without wrist rest

1.8 lbs / 815 g

With wrist rest

2.17 lbs / 986 g

How To

How do I enable gaming mode on a Razer keyboard?

  • For full-sized and tenkeyless keyboards: Press fn + F10
  • For mini or 60% and 65% smaller keyboards: Press fn + U

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 remove stabilizers from my keyboard?

  1. Unplug the keyboard from your PC.
  2. Remove the keycaps from the keyboard.
  3. Gently pull out the switches using a switch puller.
  4. Use a thin tool to unclip the stabilizers.

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 replace keycaps on a Razer keyboard?

  1. Pull the keycap out using a keycap puller.
  2. 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 remove and install mechanical switches on the Razer Blackwidow V4 75%?

Note: Wear an anti-static wrist strap for safety purposes.

  1. Unplug the USB cable from the keyboard.
  2. Remove the keycap from the keyboard.
  3. Gently pull out the switch using the switch puller that came with the keyboard.
  4. Insert your preferred 3-pin or 5-pin mechanical switch replacement. Ensure the pins are aligned properly before doing so.
  5. Reattach the keycap.
  6. Plug the USB cable into the keyboard and test the keys.

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 add lighting effects on Razer Keyboard?

Add lighting effects on your keyboard through Razer Synapse.

You can view the video below for instructions.

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 Synapse software.

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 turn the LEDs on or off on a Razer keyboard when the PC is on standby?

Configure the lighting of your keyboard's LEDs through Razer Synapse.

How do I create or delete macros in Razer Synapse?

  1. Open Razer Synapse.
  2. Select "MACRO" from the menu.
  3. Click the + icon on the “MACRO LIST” to add a new macro.

You can view the video below for instructions.

See the answer below for detailed instructions.

How do I assign a macro to a Razer keyboard?

  1. Open Razer Synapse.
  2. Select the key you want to assign a macro under “CUSTOMIZE”.
  3. Select "MACRO" from the menu.
  4. Select the macro you want to assign and your preferred playback option.

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 remap keys or buttons on a Razer laptop, keyboard, or mouse?

  1. Open Razer Synapse.
  2. Select the key or button you want to modify.
  3. Select your preferred function.

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 remove delays when performing "on-the-fly recording" on a Razer keyboard?

The Razer keyboard does not have the option to disable delays in on-the-fly macro recording. See the answer below for more details.

How do I adjust the keyboard polling rate?

Adjust the Razer Blackwidow V4 keyboard polling rate in Razer Synapse.

  1. Open Razer Synapse.
  2. Select "KEYBOARD" > “CUSTOMIZE” > ”POLLING RATE”.
  3. Choose your preferred polling rate. This ranges from 125 Hz to 8000 Hz.

General Information

Can I use a 5-pin switch on the Razer Blackwidow V4 75%?

Yes. Most 3-pin and 5-pin mechanical switches are compatible with the Razer Blackwidow V4 75%.

Will the keys from the Razer PBT Keycap Upgrade Set fit the Razer BlackWidow V4 75%?

Yes. The Razer PBT Keycap Upgrade Set is compatible with the Razer BlackWidow V4 75%. However, the PBT Keycap Upgrade set does not come with keycaps for Dedicated Macro Keys.

Are the media buttons and multi-function roller remappable?

Yes. The media buttons and multi-function roller can be remapped to other functions with Razer Synapse.

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.

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 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.

[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.

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