Connect the SSD to the computer
Open Disk Management on Windows or Disk Utility on macOS
Locate the new SSD in the list of drives
If prompted, initialize the disk
Choose GPT for modern systems or MBR for older systems
Create a new partition or volume
Format the partition with a file system such as NTFS, exFAT, or APFS
Assign a drive letter or mount point if needed
Apply the changes and wait for the process to complete
Verify that the SSD appears as an available drive