So I formatted my 1TB-SSD (half half in NTFS and exFAT partitions) and put it into a USB-3.1 external case. Both Partitions have fast speeds in CrystalDiskmark Test. (523 M/s read, 428 m/s write) However, when i start copying files, lets say, to my internal SSD in my laptop, my current speed is around 250 kb/s (!!) Yes, you read right. Thats a slow speed, even compared to an internet transfer.
Any idea whats going on here? As said, by themselves, the from-and-to copying disks are fast!
How can I go about this?
My laptop is an High End i7, btw.