Default SM-G900 ?

Factory Outlet Store is selling the S5 and has models in stock right now. Pricing is a little high compared to what it will cost from TMOBILE or ATT - $799 - but they are unlocked and will ship in two days.

What seems odd to me is that they say the model is SM-G900 and don't mention a letter at the end? The sales floor at their site doesn't know but I guess it will be printed on the box if anyone buys it from them,.

What I am not certain about is how universal the International Versions will be - I assume they will all be very similar - but any difference in file structure could potentially lead to a brick -

I have never considered buying an international phone in the US before - has anyone here got any experience they can share good or bad with other phones?


*(Edited this after realizing the stupidity of my original question - I can really be a noob sometimes...)
My Phone Galaxy S5 G900T
My Rom: - X-Note TMT v.3.0 NE2
My Recovery: [klte][CWM Advanced Edition] PhilZ Touch
Kernel: KT-SGS5 - NE5 - KTweaker
My Carrier - ATT




Former Devices: ☆Galaxy Note 3☆HTC ONE☆Galaxy S IV☆Galaxy Note II☆Galaxy S3☆EVO 4g LTE☆Nexus☆Epic 4G☆Treo(W)☆Palm Treo☆(P)