Help. I have several older WD SATA drives (under 2TB) docked in USB docking ports on my Windows 7 SP1 system; no issues with any of the drives. I purchased a new 3TB WD30EZRX 64MB cache drive and docked it into a new USB docking port. I used the Computer/Manage/Disk Management feature in Windows …

New 3TB WD30EZRX shows up as two 2.72TB "partitions" in Windows 7 SP1

TonyPh12345 December 2, 2012, 7:59pm 3

Many USB SATA docks don’t understand GPT disks. Happens all the time. Check with the vendor of your dock.