Cold Wallets & Self-Custody Guide

A plain-English hardware wallet guide from the PeanutButterJelly marketplace: what cold storage is, how a hardware wallet protects your private keys offline, and how to choose a device.

What a hardware wallet does

A hardware wallet is a small dedicated device that stores your private keys completely offline. Transactions are signed inside the device, so your keys never touch your computer, your browser, or the internet.

How to choose a device

• Budget classic — compact display, button navigation, USB-C only. Best for desktop-first users who want the lowest cost.
• Best first wallet — e-ink touchscreen with USB-C, Bluetooth and NFC. Best for first wallets and phone-first users.
• Step-up touchscreen — high-resolution e-ink touchscreen, tap to approve. Best for upgraders who want the easiest signing experience.
• Flagship — larger curved touchscreen, wireless charging. Best for larger holdings where clear transaction review matters most.

Common questions

Do I still need an exchange account? Usually yes — exchanges are the easiest place to convert regular money into crypto. The difference is what happens next: you withdraw to your hardware wallet, where you hold the keys.

What if I lose the device? Your assets live on the blockchain, controlled by your keys. With your recovery phrase you can restore everything onto a new device, which is why protecting the written phrase matters most.

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