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Single black keycap with cross-shaped stem, mystery design from ROG 20th anniversary series

ASUS

ASUS 90MP04UA-BKAA00 ROG 20th Edition Keycap Blind Box 1-Pack keyboard accessory

SKU CH-CZE1-T0JT5 MPN 90MP04UA-BKAA00

A blind-box keycap with a cross-shaped Cherry MX stem and a 1-in-48 chance of a special edition design

  • Product typeKeycaps
  • Product colorBlack
  • DetailsUnit: 1 x Mystery Keycap (randomly selected; may be special
  • Collectible unboxing surprise with random ROG-inspired keycap design
  • Fully rotatable 360° chair mechanism adds interactive dimension
  • Extended Claymore-inspired form maintains smooth uninterrupted keystrokes
  • Ultra-rare special edition variant at 1-in-48 chance
  • Precision-molded Cherry MX compatible stem fits cross-shape keyboards

Collectible ROG 20th Edition Keycap

The ASUS ROG 20th Edition Keycap Blind Box delivers a single mystery keycap drawn from a series inspired by iconic ROG hardware. Each pack contains one randomly selected design that may represent the ROG Chariot, Claymore, Gladius, Raikiri Pro, Delta or the ROG logo itself. A special edition variant carries a one-in-48 chance of appearing. The cross-shape stem fits Cherry MX compatible switches.

Rotatable Chair and Extended Form Factors

Selected keycaps feature a 360-degree rotatable chair mechanism inspired by the ROG Chariot, adding a tactile element to the keyboard. The Claymore-inspired design uses an extended form beyond standard 1U dimensions with an engineered base to maintain smooth keystrokes. All pieces use an obsidian-inspired base with high-precision moulding and refined finishing for display quality.

Enthusiasts Seeking Randomised ROG Collectibles

This product suits collectors who value the surprise element of a blind box and want a distinctive artisan-style accent for a mechanical keyboard. It is not for buyers who need a specific legend, profile or full keycap set, nor for those who require guaranteed matching aesthetics across multiple keys. The single-unit format limits coverage to one key position.

How it compares

Measured against everything we stock in Mouse Pads & Typing Accessories, at today’s prices. Recalculated every night.

Price $19.99
Cheaper than about 63% of the 5,836 comparable items (median $22.99).

Specifications

Product
Brand nameASUS
Product lineROG 20th Edition Keycap Blind Box
Model nameAC13 ROG KEYCAP MYSTERY BOX E20/FR
Part number90MP04UA-BKAA00
Product typeKeycaps
Product colorBlack
Size & build
Shipping weight0.05 kg
Package size76 × 51 × 51 mm

Questions about this item

How do I install the keycap and what is the step people get wrong?

Align the cross-shape stem with the Cherry MX switch and press straight down until it seats; the common mistake is twisting the keycap while pushing, which can bend the stem.

What maintenance or replacement will this keycap need later?

The keycap itself requires no scheduled maintenance; if the stem loosens over time, simply reseat it, and only replace the cap if the rotatable chair mechanism or extended base becomes damaged.

What limit shows up first under sustained use?

The 360° rotatable chair mechanism may develop slight wobble after prolonged, frequent spinning, which is the first wear indicator on this collectible keycap.

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