Over the past two years, the 75% aluminum mechanical keyboard market has become one of the most competitive niches in the enthusiast keyboard world. Three products now dominate a similar price bracket and form a genuine three-way standoff: the veteran WOB Rainy75, the value-driven PMO Wave75, and the premium newcomer TickType EVO75.
Enthusiasts keep asking the same question: which one is actually worth buying? This guide is a pure, objective comparison — no forced recommendations — designed to help you match the right board to your own priorities.
Quick Overview: The “Personality” of Each Keyboard
Before diving into specs, it helps to understand what each keyboard is trying to be.
- レイニー75 — The market veteran. Released two years ago with massive sales, it’s built around a “ready-to-type out of the box” philosophy. Often called the evergreen of aluminum keyboards.
- Wave75 — The sibling model to Rainy75 (same WOB/PMO ecosystem). Its focus is quick-disassembly modability and it ships with a sound-tuning kit, encouraging users to fine-tune it themselves.
- EVO75 — The latest and most premium entry. Built around a unique butterfly leaf-spring structure そして top-tier machining, it aims to bring near-custom experiences to a production keyboard. Some call it the “Rainy75 Pro.”
Design & Build Quality: Three Kinds of “Premium”
All three use full CNC aluminum bodies, but their finishing and design language differ meaningfully.
EVO75 — The Craftsmanship Leader
The EVO75 has the most refined build of the three. Its shell uses 220-grit sandblasting, creating a consistent, smooth, velvety surface. The rounded lines pair with a mirror-polished stainless steel weight on the back. Users describe the anodized gray finish as “cool, silky, and free of any cheap graininess.”
Rainy75 — Solid and Proven
The Rainy75 feels dense and substantial, with CNC machining that has “zero cheap feel.” It offers both anodized and electrophoretic finishes — smooth to the touch, almost buttery. Its signature is the stainless steel ice-crack weight, though the overall silhouette is admittedly plain.
Wave75 — Function-First
The Wave75 is hefty and functional. A standout detail is the magnetic nameplate that hides a 2.4G receiver storage bay. However, its coated aluminum shell is a step below true CNC anodizing, and the coated version reportedly comes mainly in white.
| Spec | EVO75 | レイニー75 | Wave75 |
|---|---|---|---|
| Surface finish | 220-grit anodized/coated | 180-grit anodized/electrophoretic | 220-grit anodized/coated |
| 重さ | ~1.8 kg | ~2 kg | ~1.9 kg |
| Back design | Mirror stainless weight | Ice-crack / glass back | Brushed weight + storage bay |
| Color options | 10 | Multiple | 7 |
取り除く： EVO75 wins on refinement, Rainy75 on heft, and Wave75 on clever functional storage.
Internal Structure: Three Completely Different “Skeletons”
This is where the three keyboards diverge the most — and it directly shapes their feel and sound.
EVO75 — Butterfly Leaf Spring
The EVO75 uses a distinctive Butterfly Leaf Spring structure, replacing traditional gasket foam with a beryllium-copper leaf + silicone strip combination. The leaf sits between two silicone layers: one isolates board vibration, the other cushions the spring’s flex, creating even elasticity. The key advantage of beryllium copper is long-term resilience — it won’t collapse over time the way foam can.
Rainy75 — Silicone Bead PCB Gasket
The Rainy75 uses a silicone-bead PCB gasket, with beads clipped to the PCB rather than the plate, also acting as travel limiters. The tuning leans firm and consistent, and the filling is fully loaded: Poron sandwich foam, IXPE switch pads, and a silicone base layer.
Wave75 — Dual Gasket + Sound Kit
The Wave75 supports a switchable dual-gasket system — you can swap between default silicone strips and included silicone beads. Its biggest highlight is the bundled sound kit: four foam sheets of varying materials and thicknesses that combine into up to eight distinct sound profiles.
| Spec | EVO75 | レイニー75 | Wave75 |
|---|---|---|---|
| Internal structure | Butterfly leaf spring (BeCu) | Silicone-bead gasket | Dual gasket (switchable) |
| Damping | 3-layer silicone | 5-layer full loadout | 5-layer + sound kit |
| Trait | Resilient, no collapse | Firm, consistent | Most tunable (8 sounds) |
As one user summarized: “EVO75 uses beryllium-copper + silicone support while Rainy75 uses silicone beads — that’s why EVO75 absorbs sound better, while Rainy75 sounds crisper.”
Typing Feel & Sound: Muted vs. Crisp vs. Tunable
Sound and feel are the most subjective — yet most decisive — differences.
EVO75 — A Little Bounce
The EVO75 feel is described as “a slight bounce — neither soft nor mushy.” で 1.2 mm PCB featuring sound channels, it produces a “crisp but not hollow” tone. Some love its “OW-like character”; others find it “a bit too muted, almost hollow.” Ultimately, mute vs. crisp depends on your switch and plate combo.
Rainy75 — The Signature Crisp Sound
Sound is Rainy75’s calling card. Reviewers describe it as “like tapping a glacier” — crisp, springy, non-sticky. Paired with a PP plate and Ziwei switches, it’s very “HiFi.” The press feel is “balanced soft-springy,” and its stabilizer tuning is widely considered T0-tier.
Wave75 — Whatever You Tune It To
The Wave75’s sound is entirely user-defined. Thick filling gives a warm “mahjong” tone; thin filling emphasizes the switch’s crisp click. It ships with HMX Green Bamboo (base) or Kailh Snow-Purple switches (45gf actuation) on higher tiers. More foam = firmer feel; less foam = softer and springier.
| Spec | EVO75 | レイニー75 | Wave75 |
|---|---|---|---|
| Sound profile | Muted-crisp (selectable) | Crisp HiFi | Tunable (muted/crisp) |
| Feel | Slight bounce | Balanced soft-spring | Fully tunable |
| Stab tuning | Excellent | T0-tier | Good |
Performance & Battery: Which One Packs the Punch?
All three are tri-mode wireless (USB-C / 2.4G / Bluetooth) with hot-swap sockets and RGB.
- EVO75 — Excellent latency: ~2 ms wired, ~3 ms 2.4G. Battery is a substantial 8000 mAh (two 4000 mAh cells in series) with 10W fast charging and 1000 Hz polling.
- レイニー75 — 2.4G defaults to ~11 ms but drops to ~3.6 ms in low-latency mode. Battery varies by tier: 3500 mAh (mid/low) または 7000 mAh (top) with fast charging. 1000 Hz polling.
- Wave75 — 2.74 ms wired, ~4.66 ms 2.4G. Battery is tiered: 4000 mAh (low) または 8000 mAh (top). 1000 Hz polling. Users report no perceptible lag in FPS games.
| Spec | EVO75 | レイニー75 | Wave75 |
|---|---|---|---|
| Wired latency | ~2 ms | — | 2.74 ms |
| 2.4G latency | ~3 ms | ~3.6 ms | ~4.66 ms |
| バッテリー | 8000 mAh (all tiers) | 3500 / 7000 mAh | 4000 / 8000 mAh |
| Fast charge | 10W | Top tier | ✗ |
| Receiver storage | ✗ | ✗ | Magnetic bay |
Key point: EVO75 ships 8000 mAh across the entire lineup — no “budget-tier shrinkage” — a clear advantage over the other two.
Software & Modability: Which One Is the Most Hassle-Free?
All three support VIA/QMK open firmware for remapping, macros, and layer config via web or client.
- EVO75 adds a tool-free quick-disassembly design — magnetic + ball-catch top and bottom cases open without screws, ideal for tinkerers.
- Wave75 also supports quick-disassembly, but its real appeal is the 8-profile sound kit for endless tuning.
- レイニー75 取る “ready to type” route — it doesn’t encourage modding. Users call it “more like a conventional production custom — plug and play, no fuss.”
| Spec | EVO75 | レイニー75 | Wave75 |
|---|---|---|---|
| VIA/QMK | √ | √ | √ |
| Quick-disassembly | Magnetic + ball-catch | ✗ | √ |
| Sound kit | ✗ | ✗ | 8 profiles |
| Positioning | Tinker-friendly | Plug-and-play | Most modable |
The “Dealbreaker” Details
No keyboard is perfect. Here’s where each one stumbles.
レイニー75 has the most concentrated complaints:
- Power switch hidden under the CapsLock keycap — widely called “anti-human design”
- No 2.4G receiver storage bay
- Front height near 22 mm — a wrist rest is recommended
- Some QC reports: PCB rust, garbled input, RGB failures
Wave75 had rough early days:
- Launch units suffered PCB static damage and 2.4G disconnects
- Some users reported 2.4G range under 50 cm
- Driver software still maturing
- Polarized QC and after-sales feedback
EVO75 has the fewest issues:
- Highest price of the three
- Back plate “very hard to remove once installed”
- Some find the sound “too muted, almost hollow”
Final Takeaway: The Differences at a Glance
None of these keyboards is objectively “best” — each leads in different dimensions.
| 寸法 | EVO75 | レイニー75 | Wave75 |
|---|---|---|---|
| Build quality | Top (220-grit + mirror weight) | Excellent (180-grit + ice-crack) | Good (coated version weaker) |
| Internal structure | Butterfly leaf spring (resilient) | Silicone-bead gasket (firm) | Dual gasket (most tunable) |
| Sound profile | Muted-crisp (selectable) | Crisp HiFi | Tunable (8 profiles) |
| Feel | Slight bounce | Balanced soft-spring | Tunable |
| バッテリー | 8000 mAh all tiers + fast charge | Tiered (3500/7000) | Tiered (4000/8000) |
| 遅延 | ~2 ms wired / ~3 ms wireless | ~3.6 ms wireless | 2.74 ms / 4.66 ms |
| Quick-disassembly | √ | ✗ | √ |
| Sound kit | ✗ | ✗ | √ |
| Receiver storage | ✗ | ✗ | √ |
| Stab tuning | Excellent | T0-tier | Good |
| Typical flaw | Hard-to-open back, muted sound | Anti-human switch, no storage | Early static/disconnect issues |
So which one is right for you?
- Prioritize build quality and a unique soft-springy feel → the EVO75 and its butterfly leaf-spring structure stand out.
- Prioritize plug-and-play convenience and crisp HiFi sound → the market-proven レイニー75 delivers.
- Prioritize modability and free tuning → the Wave75 sound kit and quick-disassembly give you the most creative freedom.
Together, these three keyboards define the current ceiling of the 75% aluminum keyboard category. The final choice comes down to a single question: what kind of experience are you willing to pay for?
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