Key Features:
Fully Offline – Cold storage for maximum security.
Multi-Factor Authentication – NFC, and fingerprint support.
Sleek & Customizable – Credit-card size, available in any shape/design.
Ultra-Secure –CC EAL6+, protects against hacks and unauthorized access.
Advanced Displays – E Ink (visible in sunlight) or OLED touchscreen for intuitive control
Applications:
✅ For Max Security – Cold storage for institutions, Bitcoin/crypto long-term holders, and high-value assets.
✅ For Daily Use – Compact and NFC -enabled for small transactions (e.g., retail purchases).
✅"Your vault + wallet in one" – Combines cold wallet security with hot wallet convenience.
✅Future-ready – Supports Bitcoin, Ethereum, and 1000+ altcoins.
FAQs：
Q1: What is a crypto cold wallet card?
A: A credit card-sized hardware device that stores cryptocurrency private keys completely offline — no internet connection, no exposure to online threats. It combines cold storage security with everyday portability, enabling both long-term asset protection and NFC-enabled transaction signing.
Q2: What is the difference between the standard card and the special-shape version?
A: The standard version follows credit card dimensions (CR80, 85.6 × 54mm) for compatibility with standard card holders and wallets. The special-shape version uses the same core PCBA and security architecture but can be produced in custom shapes and sizes — coin, tag, key fob, or any form factor — using our patented cold lamination process. Both versions share the same security and functional specifications.
Q3: What is the difference between a cold wallet and a hot wallet?
A: A hot wallet is connected to the internet, making it convenient but vulnerable to hacks and unauthorized access. A cold wallet stores private keys offline — the keys never touch an internet-connected environment, eliminating remote attack vectors. Our card hardware is designed for cold storage: private keys are generated and held inside the secure chip and never exported.
Q4: What authentication methods does the card support?
A: NFC and fingerprint are supported as authentication factors. Multi-factor authentication configurations can be specified at the hardware level — contact us to discuss the authentication architecture for your deployment.
Q5: What is the data displayed through?
A: E-Ink (electronic paper). Visible in direct sunlight, retains the display without power, and consumes minimal energy — suitable for balance checks, transaction confirmation, and address display on a card form factor.
Q6: What manufacturing process is used?
A: Our patented cold lamination process (Patent No. ZL201610452484.2 & ZL202110524934.5) encapsulates PCBA components — including the security chip, display module, NFC antenna, fingerprint sensor, and battery — under controlled low temperature and pressure. This protects sensitive components from the heat damage that traditional hot lamination causes, and allows complex multi-component assemblies to be packaged into card or custom form factors reliably.
Q7: Do you provide the wallet software or firmware?
A: No. We are a hardware manufacturer. In terms of system software, you can develop it yourself or find a system vendor to develop it. We provide hardware documentation and samples to support firmware development.
Q8: Who is this product for?
A: Companies and institutions that need a branded, secure hardware wallet as part of their product or service offering — crypto exchanges and custodians building their own hardware wallet line, fintech companies adding cold storage to an existing platform, enterprise treasury teams managing large digital asset holdings, and hardware wallet brands looking for an OEM manufacturing partner.
This product is not suitable for individual retail buyers, personal crypto investors, or anyone without an existing software development team or system integration capability.
Key Features:
Fully Offline – Cold storage for maximum security.
Multi-Factor Authentication – Bluetooth, NFC, and fingerprint support.
Sleek & Customizable – Credit-card size, available in any shape/design.
Ultra-Secure –CC EAL6+, protects against hacks and unauthorized access.
Advanced Displays – E Ink (visible in sunlight) or OLED touchscreen for intuitive control
Applications:
✅ For Max Security – Cold storage for institutions, Bitcoin/crypto long-term holders, and high-value assets.
✅ For Daily Use – Compact and NFC/Bluetooth-enabled for small transactions (e.g., retail purchases).
✅"Your vault + wallet in one" – Combines cold wallet security with hot wallet convenience.
✅Future-ready – Supports Bitcoin, Ethereum, and 1000+ altcoins.
FAQs：
Q1: What is a crypto cold wallet card?
A: A credit card-sized hardware device that stores cryptocurrency private keys completely offline — no internet connection, no exposure to online threats. It combines cold storage security with everyday portability, enabling both long-term asset protection and NFC-enabled transaction signing.
Q2: What is the difference between the standard card and the special-shape version?
A: The standard version follows credit card dimensions (CR80, 85.6 × 54mm) for compatibility with standard card holders and wallets. The special-shape version uses the same core PCBA and security architecture but can be produced in custom shapes and sizes — coin, tag, key fob, or any form factor — using our patented cold lamination process. Both versions share the same security and functional specifications.
Q3: What is the difference between a cold wallet and a hot wallet?
A: A hot wallet is connected to the internet, making it convenient but vulnerable to hacks and unauthorized access. A cold wallet stores private keys offline — the keys never touch an internet-connected environment, eliminating remote attack vectors. Our card hardware is designed for cold storage: private keys are generated and held inside the secure chip and never exported.
Q4: What authentication methods does the card support?
A: NFC and fingerprint are supported as authentication factors. Multi-factor authentication configurations can be specified at the hardware level — contact us to discuss the authentication architecture for your deployment.
Q5: What is the data displayed through?
A: E-Ink (electronic paper). Visible in direct sunlight, retains the display without power, and consumes minimal energy — suitable for balance checks, transaction confirmation, and address display on a card form factor.
Q6: What manufacturing process is used?
A: Our patented cold lamination process (Patent No. ZL201610452484.2 & ZL202110524934.5) encapsulates PCBA components — including the security chip, display module, NFC antenna, fingerprint sensor, and battery — under controlled low temperature and pressure. This protects sensitive components from the heat damage that traditional hot lamination causes, and allows complex multi-component assemblies to be packaged into card or custom form factors reliably.
Q7: Do you provide the wallet software or firmware?
A: No. We are a hardware manufacturer. In terms of system software, you can develop it yourself or find a system vendor to develop it. We provide hardware documentation and samples to support firmware development.
Q8: Who is this product for?
A: Companies and institutions that need a branded, secure hardware wallet as part of their product or service offering — crypto exchanges and custodians building their own hardware wallet line, fintech companies adding cold storage to an existing platform, enterprise treasury teams managing large digital asset holdings, and hardware wallet brands looking for an OEM manufacturing partner.
This product is not suitable for individual retail buyers, personal crypto investors, or anyone without an existing software development team or system integration capability.
