Fake yan 100%.
Look sa connector ng USB Mo, it should be color blue ng header ng USB niya. Unless hindi kulay blue, USB 2.0 lang ng speed niyan.
At bakit matagal ng copy ng files, through file by file per part ng ginagawa niya. Kung bagat parang loop-hole ng ginagawa.
From Example:
Nagcopy ako ng 15GB sa 1TB na USB, although malaki ng capacity ng usb ko. So direct copy. But the was too slow, even USB 2.0 can copy that file over 35~45 minutes estimated. Kaya nagiging 5hours kung bagat para macopy successfully, is delete data and copy a another batch, para mafit ng kaya niya. Kaya nagiging cause ng DATA LOSS.
To verify the Actual Capacity ng USB Drive mo, use H2WTest.