Yes, you can. There is a flat $5 USD charge to transfer your USD into Stake.  

Once you have an account, check out your Profile Page for your wire/transfer details under USD > USD Transfers. Please make sure to include the reference details as this ensures the USD end up in your name! In addition, make sure funds are coming from a bank account in your name as we are unable to accept payments from third parties.

+ Ensure that the name on the account of the source of funds matches the name on the account you're funding.

+ We're not able to view the status of funds that have been transferred using a third party FX remitter until they arrive in the US.