# Productive Collateral A key feature for Metronome Synth is the ability to deposit yield bearing assets as collateral to mint synthetic assets. Users can then enjoy greater capital efficiency as their collateral is then productive. Currently, Metronome Synth accepts select pool tokens from Vesper Finance. Example: * User deposits USDC into the Vesper Finance USDC pool and receives the vaUSDC token. * vaUSDC is a yield bearing token, so over time the user earns additional USDC on their deposit. * User then takes the vaUSDC tokens and deposits them as collateral on Metronome Synth. * This collateral can now be used to mint synthetic assets. * Their USDC continues earning yield in the Vesper pool while it simultaneously acts as collateral. --- # 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.metronome.io/metronome-synth/metronome-synth-protocol/productive-collateral.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.