Hi guys, really don't know what else can or where else to ask about this, I'm using the macbook pro retina with mavericks. bought a seagate 4tb desktop hdd with vantec usb 3.0 enclosure these two combination will not mount on my mbp it would not mount and is the hdd does not appear in my disk utility as well. tried going to terminal with the command diskutil list and the hdd is no where to be found as well. however, the same combination when plugged to windows is mounted. so far, i've tried : - mount the disc to windows, format it to gpt nfts = can't mount - mount the disc to windows, format it to gpt exfat = can't mount - mount the disc to windows, format it to gpt hfs using paragon hard disk manager = can't mount too. i took apart and plug the hdd to my old western digital enclosure which is connected with usb 2.0, the disc is mounted, saw it in disc utility but only 1.8TB. i'm quite sure when i bought the hdd and enclosure, both said it is compatible with the mac. i'm not sure what is wrong....is it the cable...or...? because i also tried using a usb 2.0 cable to connect them and still it won't work.