This is a regular Checkers Voucher which you should present to the staff, they will input the pin manually.
You can spend the balance or top up to a physical Checkers card.
If you want to spend directly, you must spend MORE than the voucher value and pay the balance with an alternative method. The voucher does not allow spending less than the balance. If you try to spend less, the staff will need to put the balance onto a physical card.

https://www.termsconditions.co.za/content/dam/ShopriteGroup/Terms/PDFS/Shoprite%20Checkers%20Gift%20Card.pdf