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hardware wallets for secure storage

We don't offer exchanges, cloud storage, or financial services.
Device security

Development of secure hardware architectures, key isolation, cryptographic modules, protection against physical opening and side channels.

Firmware and software

Development of firmware with support for multiple cryptocurrencies, over-the-air (OTA) updates, and integration with desktop and mobile applications.

Integration and SDK

We provide SDKs and APIs for integration with exchanges, payment gateways, and mobile applications. We support standards (BIP, EIP, PSBT).

Corporate solutions and customization

Scalable storage solutions for institutional clients, custom device design, and key management services (HSM implementations, multi-signature).

Latest Product

New Hardware Wallet models

Modern devices for any format of use

Cold storage, hardware isolation of keys, and protection against extraction.

BTC, ETH, ERC-20, BSC, Solana, and others — a single management interface.

Vulnerability fixes, new features, and token support.

SDK and plugins for popular wallets and exchanges.

Mobile and desktop applications with intuitive navigation.

Independent security checks and compliance with industry

Technical support, documentation, and warranty services.

Scalable solutions for institutional clients and multi-signatures.

Why Choose us

Reliability, experience and focus on safety

Hardware security at the industrial standard level

We use certified chips, side-channel protection mechanisms, and physical tamper protection.

Flexible integration and compatibility

A wide range of SDKs, support for standards, and easy integration with existing services.

Transparency and open audits

We conduct and publish the results of independent code and firmware audits.

Customer support and maintenance

24/7 technical support for critical corporate customers and clear technical support for private users.

Protect your Crypto assets today
Get a device selection consultation and a demonstration
Who we are

Experts in Hardware Security for Cryptocurrencies

Tag-R is an engineering company focused on the design and manufacture of hardware solutions for the secure storage of digital assets.
Frequently Ask Questions

Helpful Answers to Common User Questions

How does the hardware wallet protect my funds?
The hardware wallet stores private keys in an isolated vault, and signatures are performed internally without transferring keys to external systems.
Use the recovery phrase (seed) to restore access on a new device; store the seed in an offline location.
Yes, our models support the main standards — ERC‑20, BEP‑20, SPL, etc.; the availability list depends on the model and firmware versions.
Updates are released as needed — usually several times a year; critical patches are released immediately after a problem is detected.
Yes, we provide SDKs and plugins for integration with popular services and our own solutions.
Using mechanical and electronic countermeasures: protection