# aeUSD #### *NOTE: we are going to migrate from sDAI to the new sUSDS soon.* Users can convert their USDC to aeUSD on Aevo, fee-free. aeUSD is an ERC-4626 asset built on Aevo L2 which is a composition of USDC and [sDAI](https://docs.sparkprotocol.io/faq/dai-savings-rate-dsr#what-is-sdai). aeUSD is an exchange-whitelisted collateral asset with a 100% collateral factor, allowing users, market-makers, and strategies to earn sDAI APY on their **margin.** aeUSD yield is generated by depositing into Maker DAO’s [Dai Savings Rate](https://docs.sparkprotocol.io/faq/dai-savings-rate-dsr#what-is-dsr) (DSR) module, and receiving sDAI. See Maker's [dashboard](https://makerburn.com/#/dsr) and [gov proposal](https://forum.makerdao.com/t/mip102c2-sp16-mip-amendment-subproposal/21579/2) for more. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.aevo.xyz/aevo-products/aevo-exchange/technical-architecture/collateral-framework/aeusd.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.