Context
The objective of this documentation is to help crypto assets service providers to add to their service the capability to connect Ledger hardware devices (Nano S, S Plus and X) to preserve clients’ self custody and always let them keep crypto assets in their hardware wallet.

Fig. 1: Paraswap provides the capability to connect your Ledger Wallet
Connectivity Capabilities
Ledger hardware wallets are capable of connecting through different types of technologies and can be interfaced using different patterns.

Fig. 2: Ledger Nano S, S Plus & X connectivity capabilities
Ledger hardware devices connect with Desktops & Mobile devices through USB OTG & Bluetooth.

Fig. 3: Ledger technical connection protocols
Now let’s choose the right transport for your application on next step