part · switch

Cherry MX2A Red

Spec sheet

Type: linear
Top housing: nylon
Bottom housing: nylon
Stem: pom
Spring: 45g actuation · 75g bottom-out
Travel: 4 mm
Factory lubed: yes
Released: Aug 24, 2023

Cherry's redesigned MX Red with a factory grease ring chemically similar to Krytox 205g0 and tighter stem tolerances. Smoother and quieter than the legacy MX Red while keeping the same 45g actuation and 100M-actuation lifespan.

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Mentioned in 5 articles

Cherry MX2A switch cross-section, side view — top housing with stem hole, cruciform-mount POM stem column drawn in cherry-red splash, 5-coil spring, bent-leaf contact, and bottom housing with pin contacts; a thin dashed callout traces from the stem-housing interface to a magnified circular inset showing the new factory grease ring with scattered lube dots.

Deep Dives

What Cherry's MX2A revision actually changed

Cherry's MX2A landed in 2023 with a real engineering update — factory lube, tighter tolerances, the same 100M-press lifespan. The reason the discourse cooled isn't that the switch failed; it's that the enthusiast slot it aimed at was already claimed by the time it arrived.

thockMay 10, 20267 min read

Exploded-axonometric silhouette of a mechanical keyboard switch on a dark background — top housing, stem, spring, and lower housing separated by thin gap lines, with a single pale-cyan accent dot anchoring the stem.

Deep Dives

How HMX took over the mid-tier linear slot

Two years ago HMX was a name on a vendor page nobody pronounced confidently. Today the Cloud sits second on our W19 tracker and lands in half the $120 prebuilts the scene argues about. The rise wasn't an accident.

thockMay 10, 202612 min read

Guides

Lubing 101: what matters, what doesn't, and where to stop

Lube moves the sound and feel of a switch in ways nothing else in the build can. It also chews up a Saturday and ruins switches when applied with the enthusiasm the rabbit-hole crowd recommends. Here is the version that earns its keep.

thockApr 30, 20267 min read

Guides

Switch housings, compared: nylon, polycarbonate, POM, and the rest

The housing line on a switch spec sheet is the second-most-important thing about a switch, after the type, and most buyers skim past it. Material decides how the switch rings, how the stem rails feel under a finger, and how much grace it gives a bad lube job. A 'PC top, nylon bottom' tag is doing more work than its three words suggest.

thockApr 21, 20269 min read

Cross-section diagram of a switch housing showing where a film sits between top and bottom housing

Ideas

Switch films: do they actually do anything?

Thin POM shims between your switch housings cost five dollars and promise a tighter, better-sounding switch. The mechanism is real. Whether it matters on your specific switches is a separate question.

thockApr 13, 20268 min read

Cherry MX2A Red appears in editor-curated build sheets.

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