To link your USD account with PayPal, you will need to follow these steps:
Log in to your PayPal account and go to the "Wallet" section.
Click on the "Link a bank" option and select the "US bank account" option.
Enter your bank routing number and account number, and then click "Continue."
PayPal will verify your account information and, if successful, will add your USD bank account to your PayPal account.
Once your USD bank account is linked, you can use it to receive payments from PayPal and transfer funds to and from your linked bank account. You can also use the linked bank account to make payments through PayPal.