Both are SanDisk Ultra A1 C10 U1 cards. The 1TB card that was written into was housed in a SanDisk USB 3.0 card reader slotted into a USB 3.x port in HP i7 ProDesk computer. The Card read from was housed in a generic USB 2 card reader slotted into the computer USB 2 slot. In Windows 10 the following was run in Poweshell ISE to copy the F: drive to H:\Backup folder.
robocopy $Source_Drive_Path $Destination_Drive_Path /E /MT:8 /R:5 /W:5 /ZB /LOG:$logfileto
The 1 TB card had 250 GB back up from another SD card from a while ago. Otherwise, it had not been used at all.
Why did it take so long? What could I have done to speed the process?
