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Cuvex

Cuvex Personal Hardware Security Module (HSM) for Sovereign Self-Custody | Offline PSBT Signing & Privacy (120 chars)

3.9
(24 Ratings)
Cuvex Personal Hardware Security Module (HSM) for Sovereign Self-Custody | Offline PSBT Signing & Privacy (120 chars) - main product image
All-inclusive price — duties & taxes paid, no customs charges at delivery
₹31,750₹49,410

You save ₹17,660 (36%)

36% off the seller list price

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Cuvex Personal Hardware Security Module (HSM) for Sovereign Self-Custody | Offline PSBT Signing & Privacy (120 chars) — Black
Black
₹31,750
₹49,410
In Stock

Estimated doorstep delivery by 28 Oct - 30 Oct from USA

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Secure Your Crypto with Offline Hardware

About this item

Cuvex Personal Hardware Security Module (HSM) is a dedicated device for sovereign crypto self-custody, supporting offline seed encryption and PSBT signing. It ensures maximum privacy by operating fully offline, with no reliance on servers or telemetry. Built with security from first principles, Cuvex encrypts seed phrases offline using AES-256-GCM, preventing secrets from touching internet-connected systems. Its architecture supports manual entropy generation, enhancing key sovereignty. Sensitive data is never stored permanently; memory wipes automatically after each operation. Compatible with wallets like Ledger, Trezor, Coldcard, and Jade, it offers true control over your keys and privacy, eliminating backend dependencies and data correlation risks. Delivered in 14-16 days with all duties included, backed by a 24-month warranty.

Key Features

  • Sovereign Self-Custody HSM: Personal hardware security module that encrypts secrets offline without relying on servers or third-party infrastructure
  • Offline PSBT Signing: Sign Bitcoin PSBT transactions with deliberate human verification and dual air-gap security, minimizing attack surfaces
  • No Telemetry, No Metadata Leakage: Designed with zero telemetry, zero balance auditing, and zero backend dependency for maximum privacy
  • AES-256-GCM Cryptography: Seed phrases are encrypted offline with advanced AES-256-GCM; secrets never touch internet-connected systems
  • Supports Any Wallet: Works seamlessly with existing wallets that expose recovery seeds (Ledger, Trezor, Coldcard, Jade, etc.)
  • True Physical Entropy: Optional seed generation using manual entropy (dice and coin) for enhanced key sovereignty
  • Volatile Memory, Secure by Design: Sensitive data is never stored permanently; memory wipes automatically after each operation
  • Privacy-First Architecture: Traditional hardware wallets rely on software and backend services that expose users to data correlation, balance indexing, and privacy risks. Cuvex stops that at the root with a privacy-first architecture, ensuring your keys and transaction behavior remain yours alone

Why choose this product

First-Principles Security Architecture

Cuvex's architecture is built from the ground up to eliminate backend dependencies, ensuring your private keys and transaction behavior remain fully under your control, with no data leaks or telemetry, supporting sovereign crypto self-custody.

Ideal for Privacy-Conscious Users & Sovereign Custody

Designed for users who prioritize maximum privacy and control over their crypto assets. Skip if you rely on cloud-based wallets or need multi-user access; supports all major wallets exposing recovery seeds.

How to use

  • Connect the Device — Plug the Cuvex HSM into your computer's USB port. Ensure it is recognized by your wallet software for offline seed encryption.
  • Generate or Import Seed — Use manual entropy (dice or coin) or import existing seed into the device for offline storage and signing setup.
  • Sign PSBT Transactions — Connect to your wallet, verify transaction details physically, and sign offline, ensuring maximum privacy and security.
  • Wipe Memory & Store Safely — After signing, memory wipes automatically. Store the device in a safe, dry place for ongoing use.

Example scenarios

Typical situations where Cuvex Personal Hardware Security Module (HSM) for Sovereign Self-Custody | Offline PSBT Signing & Privacy (120 chars) helps — illustrative scenarios, not customer reviews.

1
Scenario 1
Illustrative example
Where it helps

A crypto enthusiast in Mumbai wants maximum privacy for seed storage, avoiding cloud risks, and prefers offline signing.

How this product helps

Cuvex supports offline seed encryption and signing, arriving in 14-16 days with duties paid, ensuring sovereign control and privacy.

Technical specifications

Setup & usage

Supported WalletsLedger, Trezor, Coldcard, Jade
OperationOffline, air-gapped signing
Recomm. UseSupport seed encryption, PSBT signing
Cost per use₹31,750 per unit
Shelf LifeNot applicable
Reapplication MathMemory wipes after each operation
ContraindicationsNot for use with untrusted devices
AllergensNone

Warranty

CrowCrowCrow helps you bring this product to India. Any warranty is offered by Cuvexunder its own policy.

Read more

How we compare

FeatureCuvex Personal HardwareOthers
Supported WalletsSupports Ledger, Trezor, Coldcard, Jade, seamless offline signingLocal hardware wallets with limited wallet support, often online or cloud-based
Encryption MethodAES-256-GCM offline encryption, no internet touchBasic encryption, often software-based, with potential privacy risks
Operation ModeFully offline, air-gapped, manual entropy supportOnline or connected devices, exposing data to network risks
Warranty & Support24 months, factory-sealed, all duties includedVaries by brand, often limited warranty, additional duties

Product details

SKUpmu6812
GTIN8495390807810
BrandCuvex
ModelCuvex 1.0
ColorBlack
Item Weight0.399 kg (0.88 lb)
Item Dimensions5.5 x 5.5 x 3.3 inches

About Cuvex

Cuvex specializes in sovereign crypto security devices, delivering high-security hardware modules designed for maximum privacy and control.

Compliance & Legal

Device complies with standard cryptography and data security regulations. No medical or medical-adjacent claims. No certifications claimed.

Customer Reviews

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FAQ, See What Others Asked

Will this hardware security module work with all major wallets?
Yes, Cuvex supports seamless integration with popular wallets like Ledger, Trezor, Coldcard, and Jade, enabling offline seed encryption and signing without reliance on servers or telemetry.
Is this device suitable for maximum privacy and sovereignty?
Absolutely. Cuvex operates fully offline, with zero telemetry and backend dependencies, ensuring your private keys and transaction data remain entirely under your control, supporting sovereign self-custody.
Can I generate seed entropy manually for enhanced security?
Yes, Cuvex supports manual seed generation using dice or coin, giving you additional control over your key sovereignty and security.
What is the delivery time for this product in India?
Your Cuvex HSM will arrive in 14-16 days with all duties paid, shipped via ExpressBox tracked service, ensuring quick and reliable delivery.
What is the warranty period for this device?
It comes with a 24-month warranty against manufacturing defects, with a 30-day return policy if the factory packaging remains unopened.
Is this device compatible with all operating systems?
Yes, it connects via USB and is compatible with Windows, macOS, and Linux, supporting plug-and-play operation without additional drivers.

Frequently bought together

Cuvex Personal Hardware Security Module (HSM) for Sovereign Self-Custody | Offline PSBT Signing & Privacy (120 chars)

This item:

Cuvex Personal Hardware Security Module (HSM) for Sovereign Self-Custody | Offline PSBT Signing & Privacy (120 chars)

₹31,750

Cuvex Personal Hardware Security Module (HSM) for Sovereign Self-Custody | Offline PSBT Signing & Privacy (120 chars)

This item

Cuvex Personal Hardware Security Module (HSM) for Sovereign Self-Custody | Offline PSBT Signing & Privacy (120 chars)

₹31,750

Total price:

₹1,56,270

You save ₹58,970 (27%) Extra

3 items selected

3 items

₹1,56,270

You save ₹58,970 (27%) Extra

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Cuvex Personal Hardware Security Module (HSM) for Sovereign Self-Custody | Offline PSBT Signing & Privacy (120 chars)
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Spec
Price
₹31,750
₹49,410
₹1,23,040
₹1,63,720
₹1,480
₹2,110
₹1,580
₹1,670
₹1,040
₹1,240
₹4,700
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₹12,990
₹18,530
Rating
3.90(24)
5.00(1)
4.40(247)
4.30(1,504)
4.50(109)
4.70(75)
4.50(788)
Brand NameCuvexHPTYHJSaipomorUHamnYoqanrMount-It!
SourceUS RetailUS RetailUS RetailUS RetailUS RetailUS RetailUS Retail
Sold ByCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrow
Imported from USA
₹31,750₹49,410

You Save ₹17,660

Estimated doorstep delivery by 28 Oct - 30 Oct from USA
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Tracked from USA · duties included
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You Order
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Consignment to India Warehouse
Customs cleared
Doorstep delivery
Delivered to you

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₹95,250+ (3× the price)
₹31,750 locked, all-in
Hard to get the original US version in India
Original US version, shipped to your door
Extra pay for Import Duties, GST, and forex fees
One price in INR, no customs charges at delivery
4–12 weeks · No tracking
14-16 days · live tracking
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