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Azio KB540 - Large Print 3-Color LED Wired USB Keyboard, Washable, Waterproof IP66 (MAC Version)
Azio

Azio KB540 - Large Print 3-Color LED Wired USB Keyboard, Washable, Waterproof IP66 (MAC Version)

Bottom line: The Azio KB540 - Large Print 3-Color LED Wired USB Keyboard, Washable, ($45.90 on Amazon as of 2026-10-06): IP66 rating lets you rinse the whole keyboard under water; main trade-off: wired USB only, so no Bluetooth or wireless desk option.

$45.90

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Buy on Amazon — $45.90 Compare to similar gaming peripherals

By , Founder & Editor-in-Chief · Listing data updated

Mike Perry — Hardware researcher since 2014. For keyboards, mice, headsets and other PC peripherals, synthesises manufacturer specs and independent reviews rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference.

*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.

Pros & Cons

Pros

  • ✓ IP66 rating lets you rinse the whole keyboard under water
  • ✓ Silver-ion antimicrobial agent applied to exterior parts
  • ✓ Oversized large-print keycaps backlit for low-vision typing
  • ✓ Three switchable backlight colors: blue, red, purple
  • ✓ True Mac layout with Expose, Dashboard, media, brightness keys

Cons

  • ✗ Wired USB only, so no Bluetooth or wireless desk option
  • ✗ Mac-format layout means mismatched keys on Windows PCs
  • ✗ Membrane-style large-print board, not a mechanical typing feel
  • ✗ Backlight limited to three preset colors, no custom RGB

Manufacturer description

The Azio KB540 is a Mac-specific wired USB keyboard built for spaces where spills, dirt, and shared use are routine. Its IP66 waterproof rating means the whole board is washable, so you can rinse it under running water after a coffee spill or wipe it down with cleaning agents without babying the electronics. Azio adds a silver-based inorganic antimicrobial agent to the exterior parts, which the brand states inhibits the growth of gram-negative bacteria, gram-positive bacteria, and molds. The large-print keycaps are the other half of the story: oversized letters lit from behind in your choice…

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SpecPicks Verdict

SpecPicks scored Azio KB540 - Large Print 3-Color LED Wired USB Keyboard, Washable… using a rating × review-volume × price-fit model applied to published specs and reviews across the gaming peripherals category. Azio's gaming peripherals lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for gaming peripherals of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Frequently Asked Questions

Can you actually wash this keyboard with water?

Yes. Azio rates the KB540 at IP66 and describes it as washable, shielding against spills, oils, and cleaning agents. Follow Azio's listed drying instructions before plugging it back in.

Does the Azio KB540 work with Windows?

This is the MAC version, with a layout 100% designed for macOS including Expose, Dashboard, media, and brightness keys. It connects over USB, but several Mac-specific keys will not map as labeled on Windows.

How does the backlighting work on the large-print keys?

The backlight shines through the oversized letters to illuminate them. You cycle between blue, red, and purple with a single button click, so no software or driver setup is needed.

Is this keyboard good for low-vision or accessibility use?

The design pairs large-print keycaps with backlighting specifically so the letters are easier to see. That combination, plus the washable build, makes it common in shared and clinical Mac setups.

Key Features

  • TESTED BACTERIA PREVENTION - A silver based inorganic antimicrobial agent is added to the exterior parts of the keyboard which prevents the growth of harmful bacteria and build-up of germs.
  • WIDE ANTIMICROBIAL SPECTRUM - The silver ions in the antimicrobial agent have a an affect on a wide range of microbes including gram-negative bacteria, gram-positive bacteria, and molds. Additional benefits include Heat Resistance, Sustainability, and Safety.
  • WATERPROOF AND WASHER READY - Rated at IP66, the waterproof design shields against spills, oils, cleaning agents, and much more - making it perfect for areas where dirt, liquids, or germs are a concern. The keyboard is also washable - adding another layer of protection.
  • 3 BACKLIGHT COLORS - The keycap backlight is designed to shine through the large letters, illuminating them and helping you see them better. Choose between Blue, Red, or Purple with a simple click of a button.
  • TRUE MAC FORMAT - Whether you need Exposé, Dashboard, Media Control or Brightness Control, the keyboard layout is 100% designed for Mac OS so there are no compromises to what you're familiar with.

Full Specifications

BrandAzio
ColorWhite
StyleContemporary
ThemeTrue MAC USB-C Keyboard
Model NameKB540
Style NameContemporary
Unit Count1 Count
Switch TypeMembrane
ConnectivityUSB
Model NumberKB540
Power SourceCorded Electric
CompatibilityMac
Built-In MediaUser Manual
Number of Keys104
Button Quantity104
Connection TypeWired
Keyboard LayoutQWERTY
Mfr Part NumberKB540
Special FeatureBacklit
Antenna LocationBusiness, Everyday Use, Multimedia, Personal

Ready to buy?

Azio KB540 - Large Print 3-Color LED Wired USB Keyboard, Washable, Waterproof IP66 (MAC Version) is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

Buy on Amazon — $45.90

*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.

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Azio KB540 - Large Print 3-Color LED Wired USB Keyboard, Washable, Waterproof IP66 (MAC Version)
$45.90
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