You can deposit cash into your Branch Wallet at select locations, such as Walgreens, CVS, Speedway, Family Dollar, Dollar Tree, Dollar General, and Rite-Aid.
To find a location near you, click Add Funds then Cash Deposit in the Branch Wallet tab
From there, simply go the cashier and hand them your cash and the Branch Card for them to load the money onto. There are small fees for this feature, which vary depending on location.