You wish an investment...

Which gives you during a determined duration a pre-established output
100 % safe
The rate of which is higher than that of a BCB investment product at equivalent duration.
Which is not available physically. And so you avoid the risk of loss or theft.

Then the term deposit is the investment which is convenient for you.
A term deposit is an account where you can invest a sum of money defined for a duration and a rate established beforehand.

Key points

Fixed duration and return established beforehand : you know thus exactly when and which amount you'll go to perceive.
You do not pay management charges.
The investment relates at once.
You always remain informed, because after every operation, you receive a notice.
You determine even as what will happen when due, for example on which account (Savings account, Checking account) the interest and\or the capital must be put.
You can make it renew automatically.
The rate is higher than that of the BCB investment product at equivalent duration.