137-Key Rainbow MOA PBT Keycaps for MX Mechanical Keyboards

Transform your mechanical keyboard into a vibrant, eye-catching setup with these 137-Key Rainbow MOA Profile PBT Keycaps by RK. Crafted from durable PBT plastic with a dye-sublimation process, these keycaps deliver stunning, long-lasting rainbow color legends that won't fade over time — even after years of heavy use.

⚠️ Please Note: This listing is for the KEYCAP SET only — a keyboard is NOT included.

Whether you're building a custom layout from scratch or upgrading your existing board, these keycaps offer exceptional compatibility across a wide range of keyboard sizes, making them a versatile choice for enthusiasts and DIY builders alike.

Key Features

• Material: High-quality PBT plastic — resistant to shine, oils, and wear
• Profile: MOA (spherical, medium height) — comfortable for all typing styles
• Process: Dye-sublimation — legends are embedded into the keycap, not printed on top
• Design: Vibrant rainbow color scheme for a bold, dynamic aesthetic
• Switch Compatibility: Fits Cherry MX and MX-compatible switches
• Spacebar Size: 6.25U spacebar included (plus 2U variants)
• Key Count: 137 keys total — enough for full-size and smaller layouts

Keyboard Compatibility

Compatible with 61 / 64 / 68 / 75 / 82 / 84 / 87 / 89 / 96 / 98 / 100 / 104 / 108-key mechanical keyboards (English layout).

What's in the Box

• 1 × 137-key MOA Keycap Set (Rainbow Color)

Made in Mainland China.

Upgrade Your Keyboard Setup

Looking for more accessories to complement your keyboard build? Check out these related products from our store:

• 10 in 1 Multi Functional Bone Wrench – Portable Repair Hand Tool
• 3-in-1 Precision Mini Screwdriver Keychain – Handy Repair Tool
• Clear Plastic Storage Case – Desk Organizer for Accessories

Learn more: Apple keyboards

Frequently Asked Questions

Q: Are these MOA keycaps compatible with my 60% or TKL mechanical keyboard?

A: Yes! The 137-key rainbow MOA keycap set is compatible with a wide range of layouts including 61-key (60%), 84-key (TKL), 98-key, and full-size 104/108-key mechanical keyboards with Cherry MX or MX-compatible switches. The set includes a 6.25U spacebar and 2U spacebar variants for flexible layout support.

Q: What is the difference between MOA profile and other keycap profiles like OEM or Cherry?

A: MOA profile keycaps feature a spherical (concave) top surface and a medium height similar to SA profile but with a gentler slope. This design cradles your fingertips naturally and provides a comfortable, precise typing feel — making it a popular choice for both gaming and productivity use.

Q: Will the rainbow legends on these PBT keycaps fade over time?

A: No. These keycaps use a dye-sublimation process, which infuses the rainbow color legends directly into the PBT material rather than printing them on the surface. This means the legends are extremely resistant to fading, peeling, or wearing off — even with intensive daily use.

Q: Is a keyboard included with this purchase?

A: No — this listing is for the keycap set only. No keyboard or switches are included. Please ensure your keyboard uses Cherry MX or MX-compatible switches before purchasing.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.