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NEXOVAULT — Invisible mechanical safes for hardware wallets and sensitive assets

NEXOVAULT — Beyond Cold Storage

Discreet storage for what matters most.
Hardware wallets, gold, documents: sealed into the wall.
Made in France.

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Hidden in plain sight

The safe no one will ever see.

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Security

Mechanical rotary-disc lock

304 stainless steel rotary disc. 16 million combinations.

No electronics. No battery. No dependency.

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Armour

8 mm of solid 304 stainless steel

An 8 mm stainless steel plate integrated into the cap.

20 mm total thickness.

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Structure

The body absorbs impacts

A single-piece body in carbon PPA. A technical polymer of aerospace origin that bends without breaking.

Lighter than a metal safe. Non-metallic body.

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Capacity

120 mm of usable length

Inner volume of the one-piece PPA-CF body. Inner diameter 55 mm (Ø65) or 70 mm (Ø80).

Compatible with Ledger, Trezor, and metal seed plates.

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Material

Carbon PPA — technical polymer of aerospace origin

  • Strength220 MPa tensile strength, comparable to structural aluminums
  • Heat resistancestable up to 230 °C in continuous use
  • Density1.3 g/cm³, six times lighter than steel
  • Discretiongood resistance to UV and solvents, anti-mark finish

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Anchoring

Once installed, it stays put.

An internal screw, reachable only with the cap open. The plate expands against the wall of the hole and locks everything in place. Once sealed, it cannot be extracted from the outside.

Conceal it behind a frame, a piece of furniture, a wall covering. Invisible.

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Sovereignty

Your keys. Your valuables. Your safe.

Physical ownership, all the way.

You've invested in a hardware wallet and engraved your seed phrases.

Your keys, your metal seed plates, your small valuables.

One question remains: where to keep them safe?

Safe deposit box

NEXOVAULT

€100–300 / year subscription
One-time purchase. For life.
Limited opening hours
24/7 access
Appointment required
Instant access
Bank dependency
Full autonomy
You rent the space
You own the safe
Visible. Documented.
Invisible. Concealed.

At home. Anytime. Yours alone.

— No third party. No bank. You alone.

View hardware wallet compatibility →

The safe

One safe. Two sizes.

NEXOVAULT Ø65 mm

NEXOVAULT

Ref. NXV-65

€299 incl. VAT

Capacity

Ø55 mm × 120 mm usable

Recommended uses

A compact hardware wallet and its seed phrase.

  • —Ledger Nano S Plus, Nano X · Trezor Safe 5 · Coldcard Mk4
  • —Bar or capsule seed plates
  • —Gold coins, compact jewellery

Composition

  • —One-piece PPA-CF body, 5 mm
  • —8 mm 304 stainless steel face built into the cover
  • —M3-LOCK key lock, 16 million combinations
  • —Mechanical expansion anchoring

Compatible with your hardware? Check →

Join the list

Be the first to know.

Limited production. First come, first served. No spam — just the launch announcement.

Preferred size (optional)

Installation

3 minutes. For life.

Drill

A Ø65 or Ø80 hole in a solid wall. Diamond core drill bit or concrete hole saw recommended.

Insert

Slide the safe into the hole until it seats. 30 seconds.

Seal

An internal screw expands the steel plate against the wall. Cannot be extracted from the outside. Uninstallation possible by the owner via the internal screw. Invisible.

Installation kit available as an option (+€39) — diamond core drill bit and accessories.

FAQ

Everything you want to know.

NEXOVAULT

Beyond cold storage

Designed, engineered, and 3D-printed in France