There are several forms of venture debt. Convertible notes are the most common, today. Most startups raise seed rounds using convertible notes. Startups that have substantial working capital requirements often employ lines of credit/revolvers. Last, many startups take out term loans. They borrow money for several years and repay it over time. Venture debt can supply additional capital for a startup to grow at a lower cost of capital than equity. And the difference can be material.