Mechanical vs membrane. — Per-key switches vs a single rubber sheet.

How each one actually works

Membrane keyboards have a single rubber sheet stretched across all keys. Each key sits on a small rubber dome. Press the key, the dome collapses, a carbon pad on its underside touches the membrane below, the circuit closes, and the keypress registers. Release, the dome springs back. Every key uses the same dome sheet.

Mechanical keyboards have an individual switch under every key. Each switch is a self-contained module — plastic housing, metal spring, plastic slider (the "stem"), and two metal leaf contacts. Press the key, the slider moves down, the contacts touch, the keypress registers. The switch is built around a real spring, not a piece of rubber.

That single design difference cascades into everything that follows — feel, sound, durability, customisation, gaming response, price.

Mechanical switch types — linear, tactile, clicky

Most modern keyboards (Keychron Q-series, Glorious GMMK, Royal Kludge, Akko) are hot-swap: you can lift switches out with a puller and drop new ones in without soldering. This means you can buy a board with MX Brown, try the typing feel for a month, then swap to MX Red for gaming — all on the same R3,000 hardware.

Durability — the decade gap

Manufacturer-rated lifespans are roughly 10x apart, and in practice the real-world gap is even bigger.

• Cherry MX, Gateron, Kailh switches: 50–100 million presses per switch.
• Razer Optical, SteelSeries OmniPoint: 100+ million presses (no physical contact wear).
• Membrane: 5–10 million presses before the rubber dome flattens.

For a typist hitting 50,000 keystrokes a day, a membrane starts feeling mushy or skipping inputs in 2–4 years. A mechanical board hits 10–15 years before any switch needs replacing — and if one does fail on a hot-swap board, it's a R30 part swap.

The harder part to capture in numbers: a mechanical keyboard feels the same on year 8 as it did on day one. Every keypress has the same actuation force, the same bump, the same click. A membrane gradually degrades — the dome under your most-used keys (E, T, A, space) collapses faster than the rest. Within two years, your typing rhythm has uneven response.

Gaming — NKRO, actuation and the W+A+Shift+Space problem

For gaming, mechanical's biggest practical wins are:

• Full NKRO (N-key rollover). Every simultaneous key press is registered correctly, no matter how many you hold. Critical for shooters, MOBAs and rhythm games where pressing W+A+Shift+Space+1 at once is normal.
• No ghosting. Cheap membrane keyboards drop one of your inputs if the matrix can't decode multiple simultaneous keys — typically W+A+D or arrow combos. Even "anti-ghosting" membranes only protect 6–8 specific keys.
• Shorter actuation distance. Mechanical switches register at 1.0–2.0mm of travel. Membranes register at 3.5–4.0mm. Faster taps, faster double-tap response, less finger movement per second held.
• Consistent per-key force. Every key feels identical. Membrane domes vary subtly across the sheet — the centre keys often feel different from the edges.
• Magnetic / Hall-effect switches (Wooting 60HE, Razer Huntsman V3 Pro Analog, SteelSeries Apex Pro) take this further with per-key adjustable actuation and rapid trigger — the same key can act as press + release multiple times within a single millimetre of travel.

The honest counter: for casual gaming (single-player RPGs, strategy, anything that doesn't require sub-frame input precision), a decent membrane is genuinely fine. Mechanical's gaming win is most visible in competitive multiplayer.

Typing — feel, sound and fatigue

For pure typing — long emails, code, documents — mechanical wins on three measurable axes:

• Tactile feedback. A tactile or clicky switch tells your fingers the keypress registered without bottoming out. You stop pressing harder than necessary. Over 8 hours, this measurably reduces finger fatigue.
• Faster WPM. Typing tests show roughly 8–15% higher words-per-minute on tactile mechanical vs membrane for the same typist after acclimatisation. The tactile bump lets you release earlier.
• Less typo-correction. Membrane keyboards with uneven dome wear cause "missed" inputs — you typed it, the dome didn't quite trigger. Frustrating in long-form writing.

Sound is the divisive bit. Clicky switches (MX Blue) are loud and proud — fantastic at home, deeply rude in shared offices. Tactile switches (MX Brown) are noticeable but acceptable. Linear silent switches with sound-dampening foam can be quieter than a membrane.

Customisation — keycaps, switches, lubing, software

This is where mechanical isn't just better, it's a different category entirely:

• Keycaps. Almost every mechanical keyboard uses MX-style stems (the "+" cross on the slider). This means any MX-compatible keycap set fits — PBT, ABS, themed sets, custom group buys. Membrane keycaps are board-specific moulds; you can't swap them.
• Hot-swap switches. Pull out MX Browns, drop in MX Reds, swap to silent Gaterons. No soldering on most modern boards.
• Lubing. Apply Krytox 205g0 to switch sliders for smoother travel and lower noise. Free upgrade once you have a brush and lube; transforms cheap switches into premium-feel.
• Software macros. QMK and VIA firmware (open-source, runs on most Keychron, Glorious, GMMK boards) lets you remap any key, set per-key macros, build multiple layers — without manufacturer software.
• Per-key RGB. Every switch has its own LED, individually controllable. Membrane RGB is usually zone-only.

For most people, the customisation is a nice-to-have. For typists, streamers, developers and FPS players, it's a multi-year personalisation that makes the same physical keyboard better month after month.

SA price tiers — what your budget buys

Key takeaways

1. Mechanical = individual switches per key. Membrane = single rubber dome sheet. That difference cascades into everything else.
2. Mechanical lasts ~10x longer (100M vs 10M presses) and feels the same on year 10 as day one.
3. For gaming: mechanical wins on NKRO, faster actuation and consistent per-key feel. No ghosting.
4. Linear (MX Red) for gaming. Tactile (MX Brown) for typing. Never clicky in a shared office.
5. SA entry mechanical: R1,200–R1,800 (Redragon, RK). Mid-tier: R2,500–R4,500 (Keychron, HyperX).

Frequently asked questions