Hello! I'm going to buy a MBPr 13' i5 2.4GHz, 256GB 8GB today but I want to make sure it's a late 2013 model. I thought that checking it has Thunderbolt 2 ports should be enough but any other hints? (Hopefully without unpacking so I can return it if it's not the one I want) It's unexpectedly cheap (1399 vs 1529 from the official Spanish Apple Store) in the store I'm going to buy it so I'm worried it's not the model I want... Thanks!