Hi, as the Title discribes, i would like to use a WD5003AZEX in an older external HDD-Case (for max. 500 GB) with SATA 2 Interface and USB 2.0 output, only to store files and folders forever. Do i have to set a jumper in this case or is that only necessary for old motherboards if an OS shall be in…

Hello, I recommend you take a look at this link. Installing a WD SATA, SAS, or PATA drive in an external USB/NAS enclosure or Personal Video Recorder