Open-source firmwareShips to anywhere11 native chains + all EVM tokensFree firmware updates for lifeSince 2014Fully auditable hardwareTHORChain swaps built-inOpen-source firmwareShips to anywhere11 native chains + all EVM tokensFree firmware updates for lifeSince 2014Fully auditable hardwareTHORChain swaps built-in
← SUPPORTED ASSETS
Jeff

Ethereum

Jeff

JEFFSUPPORTED

Secure Jeff (JEFF) with your KeepKey hardware wallet. Private keys are generated and stored offline, and every JEFF transaction is verified on the device screen before it is signed.

Platform Support

KeepKey Hardware WalletYES
Vault Desktop AppYES
Built-in DEX swapsYES

Asset Information

SymbolJEFF
NetworkEthereum

CAIP

eip155:1/erc20:0xf831938caf837cd505de196bbb408d81a06376ab

Why KeepKey for Jeff

Cold storage done right.

Open Source

Firmware and software are publicly auditable on GitHub. No black boxes, no hidden code.

Built-in Swaps

Trade JEFF directly from your hardware wallet without exposing your private keys.

On-device Signing

Every JEFF transaction is verified on the device display before broadcast.

Secure your JEFF

KeepKey Hardware Wallet

$59.95

Store, send, and receive Jeff from a device that never exposes your private key.

Learn more
FREE SHIPPING·LIFETIME UPDATES·OPEN SOURCE
Jeff (JEFF) Wallet — KeepKey Hardware Wallet | KeepKey Hardware Wallet