I've confirmed with BITMAINTECh that its not possible to identify that an Antminer S3 is different from other from physical review, i've ordered 2 from amazon from some guy who's not BITMAINTECH, i'll be posting about my experience, perhaps i could check which firmware the antminer have and verify that i have Batch 7 (since thats the one "pre-ordered"), any ideas are welcome boys.