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
O3 Swap

Ethereum

O3 Swap

O3SUPPORTED

Secure O3 Swap (O3) with your KeepKey hardware wallet. Private keys are generated and stored offline, and every O3 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

SymbolO3
NetworkEthereum
Also onOptimism, Arbitrum, BNB Smart Chain

CAIP

eip155:1/erc20:0xee9801669c6138e84bd50deb500827b776777d28

Why KeepKey for O3 Swap

Cold storage done right.

Open Source

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

Built-in Swaps

Trade O3 directly from your hardware wallet without exposing your private keys.

On-device Signing

Every O3 transaction is verified on the device display before broadcast.

Secure your O3

KeepKey Hardware Wallet

$59.95

Store, send, and receive O3 Swap from a device that never exposes your private key.

Learn more
FREE SHIPPING·LIFETIME UPDATES·OPEN SOURCE
O3 Swap (O3) Wallet — KeepKey Hardware Wallet | KeepKey Hardware Wallet