Ok thanks Parrallel means i do not need another cable for the power ,do you know of any programs for migrating data from other drives i used acronis in the past ,i also have a usb docking bay RSHTECH for drive transfer and swapping data ,my biggest issue is using a large external (WD) hard drive that i have 40,000 ish large files that i am making a lightroom catalogue of which is painfully slow ,think i need to make a lightroom catalogues chronological per year so it is speeding up the process and not looking for so much each time i start up lightroom ,i have also purchased a qnap das that i will put 2 seagate drives in the enterprise ones and run it raid array with a couple of 20tb drives hope this will be a better soloution over my existing wd duo which is getting slow due to filling up but also not really a great soloution as not hot swapable like the qnap .