I have not been able to find any conclusive information but from what I've gathered they are exactly the same just the naming has changed.
apparent ultra just now mean ultra II
update: I notice the more expensive card actually displays 2 in a circle in the picture, suggesting it' a class 2 and the cheaper one says 4 in a circle.
I'm confused now, maybe do some comparison with cards from and official retailer like Amazon as either or both may be fake.
update 2: I found this youtube video
then I noticed this under Condition:
on both cards you posted
New other (see details): A new, unused item with absolutely no signs of wear. The item may be missing the original packaging,
I'm not saying they are but I'd be carful, I dont have a SD card here atm to be able to check.