SMARDEX USDN wallet

What is SMARDEX USDN (USDN)?

USDN is SmarDex's synthetic dollar, and it holds its value by balancing two sides against each other rather than by holding cash in a bank. On one side, people deposit assets into the protocol's vault and USDN is minted against them; on the other, traders take leveraged long exposure to the same underlying asset. The protocol sits in the middle, delta neutral, which is what keeps the token tracking a dollar without a centralized reserve behind it.

For a holder the defining quirk is the rebase. USDN adjusts balances directly, so the number of tokens at your address can change without you signing anything and without anyone sending you a transfer. That is normal here, and it has two consequences worth knowing: a fixed amount noted down today may not match the figure you see later, and contracts or tools that assume a static balance handle rebasing tokens badly, which is why a non-rebasing wrapped version exists alongside it. It is also a plain ERC-20 on Ethereum in every other respect, needing ETH for gas. One more caution: the USDN ticker has been used before by an unrelated dollar token, so verify you are looking at the SmarDex one rather than trusting the three letters.

Supported networks in Tangem (1): Ethereum.

A balance that moves by itself is not something a wallet has to manage. Tangem reads the current figure straight from Ethereum whenever you open the app, so there is nothing to claim, refresh or re-confirm, and the card can spend months untouched in a drawer while the on-chain balance goes on adjusting itself. Holding a rebasing token this way keeps your involvement down to the moments you actually want to move it.