Typing from mine as we speak. Seller is reliable and the machine was brand new. Successfully registered with Apple and full warranty.
The reason for the model number difference it these were intended to be sold overseas. Zero issues though here in the US.
Buy 16gb of RAM for around $70 and a 256gb SSD for around $150 and have a machine that will last you a LONG time...total for $1220...
Link for 16gb RAM @ $70 please, would appreciate a lot.