I want to know if original PSUs like Seasonic can be pirated or faked. I'm planning to buy a Seasonic G-550 80+ gold semi-modular PSU on a computer parts store near on my school. It costs PHP 2,000 (39.41USD), complete accessories and cables. Upon researching on online stores it costs around $74.23 on Amazon and $69.90 on Newegg. The price is almost half of the online store's price or maybe it is a good deal? Although it is posted in Facebook, I know the store's physical address. Please help.
https://drive.google.com/open?id=0B5Y5UwLQpZXSTUVMSFpkZVpIM0E
https://www.facebook.com/groups/868704056489019/permalink/1886843598008388/?sale_post_id=1886843598008388
https://drive.google.com/open?id=0B5Y5UwLQpZXSTUVMSFpkZVpIM0E
https://www.facebook.com/groups/868704056489019/permalink/1886843598008388/?sale_post_id=1886843598008388