Help needed

brought new my passport ultra yesterday, initial file transferring speed was 25mb/s through usb 3.0. but later it was reduces to 9mb/s. please help


Are you experiencing this on a laptop or desktop computer?

What OS are you running?

Im new to the WD community so please forgive me if im at the wrong place. I do have 1 question, i backed up a huge file from another portable external drive onto my new WD Passport 4tb. After the backup i have 2 files under History. Does anyone know why?