Yes, you're correct!
In this sentence, "as much as 10" means "up to 10". It implies that you can save a maximum of 10 (units, dollars, or whatever is being referred to).
For example:
* "Save as much as $10" means you could save up to $10, but it doesn't guarantee that you'll save exactly $10 every time.
* "Save as much as 50%" means you could save up to 50%.
It’s often used in advertisements or promotions to highlight a potential maximum benefit.