KeyPal Secret Box Main Features Overview

Secure, reliable, efficient physical protection box for mnemonic phrase storage.

Product Introduction

The KeyPal Secret Box is the secure storage product designed for offline preservation and physical backup of mnemonic phrases, providing a highly secure and convenient asset-protection experience. Unlike traditional paper or software backups, the KeyPal Secret Box is made entirely of premium 304 stainless steel with detachable letter tiles, making mnemonic storage and backup more flexible and comprehensive. It also supports multiple sets of mnemonics, greatly improving the reliability and convenience of asset protection.

✨ Key Features

1. Triple Physical Protection

• Waterproof & Corrosion-Resistant: Made of precision-crafted 304 stainless steel, resistant to water and corrosion, suitable for long-term preservation in harsh environments.

• Fire & High-Temperature Resistant: High melting point and excellent fire resistance allow the box to remain structurally stable even in extreme heat, protecting the mnemonic phrases.

• Impact & Collision Resistant: Built with reinforced structural engineering, thicker panels, and tightly fitted design to effectively withstand accidental impacts and secure each letter tile.

2. Fully Offline Encrypted Storage

• Mnemonics are recorded by fixing letter tiles into the steel plate grooves, ensuring stable and permanent storage.

• Supports two sets of 12-word mnemonics or one set of 18/24-word mnemonics following the BIP39 standard.

• Three letter boards provide 351 detachable characters, with uppercase/lowercase distinction, numbers, symbols, and dual-sided functional design.

3.Usage Scenarios

• Ideal for users with large crypto holdings, infrequently used wallets, or those who want to establish an isolated environment.

• When paired with a hardware wallet, it forms a “cold interaction device + cold backup tool” strategy, aligning with the security principles of self-custody.

Technical Specifications

Item	Specification
Material	Premium 304 Stainless Steel
Dimensions	105mm × 60mm × 6mm (Secret Box), 106mm × 87mm × 1mm (Letter Board)
Weight	205g
Protection	Waterproof, corrosion-resistant, fire-resistant, impact-resistant
Supported Mnemonic Length	12 / 18 / 24 words
Storage Method	Detachable letter tiles fixed onto steel plates
Recommended Storage	Indoor, safe box, long-term preservation