There is no restriction on the personal receipt of foreign exchange in original currency, as long as it is not used for investment or trade, it can be remitted to the foreign exchange account. A person can exchange RMB equivalent to $50,000 a year with his ID card. If the amount exceeds $50,000, he/she needs to provide proof of legal source and use. Family support can be filled in when settling foreign exchange, and payment is a trade act. If it is personal settlement, don't fill it out.
Online banking cannot exchange RMB for US dollars.