With an upfront cash out, Aven takes your Aven line of credit and deposits it into your personal bank account. That cash out amount is placed into a fixed-term installment plan with a fixed-rate (aka an Aven Simple Loan). You will make predictable fixed monthly payments until that plan is fully repaid. There are no pre-payment penalties, so you are free to pay off the balance early (or ahead of schedule).
The upfront cash out happens soon after you open your account. For Aven Flexible Cash, you can generally do the cash out transfer the same day as account opening. For Aven Home Equity Cash, you can do the cash out transfer as soon as three business days after account opening.