Alongside Visa, MasterCard is probably the most used online paying method in the context of traditional online casino banking. It is still considered a decently safe, easy and reliable way to make money transactions and online gambling deposits.
If you own a MasterCard and want to play online for real money, here’s how you can deposit:

Go to a Trusted MasterCard Online Casino and Register an Account
Choose a recommended online casino that accepts MasterCard deposits. Create an account to become a registered member that can make real money deposits. Also, make sure that the casino’s cashier doesn’t impose any special restrictions on MasterCard deposits, which is unlikely.

Navigate to the Cashier Section and Pick MasterCard
After setting up your account, you can log in and head to the banking page where you will be able to choose your preferred deposit method. The banking section will usually be readily available from the casino’s homepage.
Just click on any button that says “Deposit” or “Cashier” or “Bank” or anything of the sort. You will be shown a list of available deposit methods, including MasterCard, which you will be picking here.

Enter Card Info to Continue
Clicking on the MasterCard logo will open a deposit window for you to enter the relevant card details which are printed on your card.
You will need to type your name as it appears on the card, the card number, the card expiry date and the three-digit CVV number on the back of the card.
Nothing more to add, and if you come back to the cashier later to make another deposit, these details will be saved, so you won’t have to enter them again.

Provide the Deposit Amount
The final key information you need to provide to carry out the deposit is the amount that you want to be transferred. Keep in mind there is a minimum amount that varies from one casino to another.
Maximum amounts per transaction are also predetermined at most reputable online casinos. Choose your deposit amount accordingly.

Submit your Deposit and Wait for it to Be Processed
Confirm the deposit after reviewing all the provided details and the money will appear in your account nearly immediately if everything is in order and you have enough funds on your card.
Without any waiting time, you can proceed to spend your deposited money on casino games.