Gday guys, I've been having an extremely frustrating issue. I recently bought an ORICO two bay external enclosure (RAID version) from PLE - this is actually the second one as I returned the other due to these problems. However, having the same issue again I'm beginning to believe that it is not the enclosure itself. I have 2 x WD Blue 6TB HDD inside running in RAID 1. I have been trying with absolutely no luck to transfer data from my old WD Elements 3TB onto this RAID setup but every time the copy paste process will either hang and resume, completely freeze, or crash the ORICO unit where I have to turn it off and back on again for Windows 10 to pick it up. The OS itself presents no issues, it is just the copy process that hangs. What I have noticed: 1. When the process hangs, the device will show in Task Manager as 100% Active with 0 read or write happening. 2. When I download files from an FTP server to the ORCIO unit it transfers smoothly and no hanging occurs - so maybe this isolates the issue to USB transfers only? 2a. If I am downloading files to the unit AND transferring from the other EXT HDD hanging will occur and more often than not will not end up recovering. 3. By pure accident when copying some files across my back up drive in RAID1 was removed from the slot and the transfer went smoothly (I assume this delays the RAID copying process - maybe this points to another faulty unit?) What I have tried: Different USB slots Enabling write caching Updating chipset drivers, USB 3 drivers Smaller data transfers (hangs no matter if the file is 15gb or 500mb) chkdsk and sfc scan Memory test Testing with WD HDD software Running ORICO unit in JBOD/"Normal" mode and using storage spaces mirroring mode (Windows did not allow me to do this) Use Windows built in file transfer and alternatives (Such as TeraCopy and FastCopy) As I said, this is the second unit I've received and both showed the same problem. Unfortunately I don't have access to another PC to test transfer issues so I'm hoping someone can give me some direction to fixing this problem - or maybe I've just gotten unlucky and this is faulty too. I'd greatly appreciate some help here as I'm sure you can all imagine this is extremely frustrating. If it helps, my setup is as follows; Intel Core i7-6700 Gigabyte Z170N-Wifi GTX 950 Kingston 16gb RAM 600w PSU Thanks very much in advance. Cheers EDIT: Also endless Googling of solutions on the internet have not solved the issue. People seem to experience similar issues but none of the fixes have worked for me.