ATMs
Automatic teller machines (local names: ATM or 自動櫃員機) are common in Hong Kong. You can usually find them in both large & small cities.
You do not need a chip & PIN card to use an ATM — your standard magnetic card will work fine.
The exchange rate you'll get on an ATM is usually the best one you'll get. You’ll pay fees, but you’ll still get a better rate than you would exchanging cash at a bank or exchange booth.