If you selected the Turbo Visa Prepaid card as your refund method, it is already linked. You do not need to provide any Direct Deposit information. The only thing that you would need to do is to follow the activation instructions to activate the card. This will allow your refund to deposit to the card once it has been processed.
If you have any questions regarding the card please call (888) 285-4169 for assistance.
Here's additional information about the card: