updateafter about a month55average write speed is now3036mbytessec for usb 20 port8090mbytessec for usb 30 port10510mbytessec for smaller chunks of data usb 30i did troubleshooting by formatting with wd troubleshooting software and now its running very smoothlyusing it since more than one monthperformance disk spinning sound is very smooth it does not make noiselittle bit of heat generated after continuous writeread usage for about more than 30 minutes that