Ledger

Ledger is a French company founded in 2014, best known for manufacturing hardware wallets. Ledger devices are among the most widely used cold storage solutions for cryptocurrency.

Ledger product lineup

Device	Notes
Nano S Plus	Entry-level, USB-C, large app storage
Nano X	Bluetooth, mobile-friendly
Flex	Touchscreen, mid-range
Stax	Large touchscreen, premium

How Ledger works

Ledger devices use a secure element chip (the same technology used in credit cards and SIM cards) to store private keys. The private key never leaves the device — even when signing transactions. The companion app, Ledger Live, is used to manage assets, check balances, and install coin support apps on the device.

Relevance to miners

Miners accumulate cryptocurrency over time through pool payouts. Storing large balances on a software wallet or exchange carries risk. A Ledger device allows miners to:

• Receive payouts to a hot wallet and periodically transfer larger amounts to the Ledger for cold storage
• Keep private keys completely offline and isolated from malware
• Support for hundreds of coins including BTC, ETH, KAS, XMR, and many others

See also

• Hardware wallet
• Private key
• Hot wallet