If you have not yet installed the SSD internally and wish to do so, more information is available here. The SSD should now be visible on your desktop with the new name you gave it. When the Disk Utility is done, close it.The drive will now be partitioned and formatted.
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Verify that the selected format has defaulted to Mac OS Extended (Journaled).Select Partition 1 if you want to use the entire SSD as a single partition and give it a suitable name.Click on Options and verify that it's set to GUID Partition Table.Highlight the SSD and click the Partition tab. From your Mac desktop, click the Apple icon in the top left corner of the screen, select App Store, then click Updates.