error 49244
I tried to connect a SSD external hard drive, it is recognized by Mac OS Monterey but impossible to activate and thus format or partition. ???
error message disent error 49244
iMac 24″, macOS 12.6
Question marked as
What brand/model external SSD?
What are you wanting to do with the SSD?
Is it new or one that has been formatted by a PC?
In Disk Utility click on the small box and select "Show All Devices"
Select the SSD, then see if you can erase and reformat it APFS / GUID Partition Map.
see > Erase and reformat a storage device in Disk Utility on Mac - Apple Support