Cleaver — A Brutalist Keyboard Carved from a Single Block of Aluminum

There's a way of looking at a keyboard not as "parts assembled together" but as "a sculpture carved from a single piece of metal." The Cleaver is a brutalist keyboard CNC-machined from one solid block of 6061 aluminum. Its weighty, concrete-building presence hits you the moment you see a single photo of it — that's what caught my eye.
📊 Quick Info
| Item | Details |
|---|---|
| Brand | Serene Industries (designer Denis Agarkov) |
| Price | About $850 (roughly ₩1.18M — official price needs confirmation) |
| Material/Process | Single-block 6061 aluminum, CNC-machined · silicone core |
| Switches | Hall-effect (magnetic) switches · MX-style keycap compatible |
| Size/Weight | About 365mm wide · about 2.6kg |
| One-line take | ⭐⭐⭐⭐☆ A high-end monolith that's closer to sculpture than keyboard |
✨ Three-Line Summary
- 👍 Biggest strength: Brutalist sculptural form carved from a single aluminum mass + the analog precision of Hall-effect switches
- 👎 Downside: Steep price around $850, 2.6kg weight, unclear purchase channel in Korea
- 🎯 Best for: Minimalist/industrial types who want a keyboard that doubles as a desk object
📸 Product Gallery

Round keycaps lined up on a silver aluminum body. The sharp corners are left fully intact

A finish so precise that even a single flathead screw on the side reads as a design element

The black version. Dot-matrix engraved legends give it an industrial vibe

Shot against a concrete wall — you instantly get why the word "brutalist" is attached to this thing
🔍 Why It Caught My Attention
Not assembled — carved
Most keyboards stack up a case, plate, and PCB layer by layer. The Cleaver takes the opposite approach. A single block of 6061 aluminum is CNC-milled all the way through to form the shape. That leaves it looking like one continuous mass with no seams, keeping its sharp corners and heavy volume fully intact — which is exactly what gives it that "like a piece of architecture" impression.
The analog precision of Hall-effect switches
The switches use Hall-effect (magnetic) technology. Instead of physical contacts, they detect input through changes in a magnetic field, so there's no contact wear and the input can be read as an analog signal. That opens the door to customizing actuation points or making use of press depth — a technology high-end boards are increasingly leaning on for both gaming and typing.
The sound a silicone core makes
Metal bodies usually ring out with a sharp resonance, but the Cleaver reportedly packs a silicone core inside to produce a deeper, softer "thocky" sound. The 2.6kg weight also plays a part in keeping the board planted on the desk for a stable typing feel.
A compact footprint with room for MX compatibility
At about 365mm wide, it's compact enough to suit a minimal setup or a narrow desk. On top of that, it supports MX-style keycaps, leaving room to either keep it stock or dress it up with artisan keycaps to taste.
🤔 Points to Consider
A price that's high-end through and through
At about $850 (roughly ₩1.18M), this sits closer to a collectible object than a practical tool. If your view is "as long as it types well, that's enough," this price is hard to justify — it only makes sense to someone who's willing to pay for sculptural form and material feel.
2.6kg means you're giving up portability
Being milled from a single aluminum block, it comes in at 2.6kg. That's reassuring stability if it's staying put on your desk, but it's the opposite of something you'd carry around. Best to think of it as a keyboard that lives in one spot.
Purchase and support channels in Korea are unclear
As a small-batch, high-end product from Serene Industries, there's no clear official retail or support channel in Korea. You'd likely need to factor in an international order along with price, shipping, and customs.
📋 Product Features (Subjective Rating)
- Design: ⭐⭐⭐⭐⭐
- Material feel/finish: ⭐⭐⭐⭐⭐
- Practicality: ⭐⭐⭐☆☆
- Value for money: ⭐⭐☆☆☆ (priced more like an art object)
🛒 Before You Buy
✅ Recommended for
- Industrial/minimalist types who want a keyboard as a desk object
- Anyone curious to experience the analog precision of Hall-effect switches
- High-end collectors willing to pay for material feel and sculptural form
❌ Not recommended for
- Anyone who picks keyboards primarily on value for money and practicality
- Users who need to carry their keyboard around frequently
- Anyone who cares about being able to buy and get support locally in Korea
🎯 Final Verdict
The Cleaver shows just how far a keyboard can be pushed toward pure sculpture. A brutalist mass carved from a single block of aluminum, the deep sound of a silicone core, and the analog precision of Hall-effect switches — this is a high-end piece that pushes both function and form to their limits at once.
Of course, the roughly $850 price, the 2.6kg weight, and the unclear purchase channel in Korea are things to weigh with a clear head. Approached purely as a practical tool, it's nearly impossible to justify.
Still, if you're someone who wants to complete your desk as a single industrial object, the Cleaver is a solid answer in the rare category of "a sculpture you can type on." It's less something I want to own than something I'd like to hold in my hands at least once.
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