It seems that Rosewill has 3 fans and more features though.
Let's see the Rosewill comes with 1 more not so good fan then the NZXT Source 210 Elite.
The fans and build quality isn't as good as NZXT.
The NZXT Source 210 Elite is $3.99 more but has USB 3.0 and two better quality fans and the ability to mount 7 120mm fans.
It's wider to accomodate better HSF.
So what features is it missing?
The regular Source 210 is exactly the same except it lacks USB 3.0 and the top 140mm fan.
For someone on a budget they are all a good value.
Plenty of complaints regarding the fans and bent panels and broken parts with Rosewill cases.
Imo the Source 210 delivers more long term value.