iMac Retina 4K 21.5 inch, Late 2015 Computer. Good Condition.
OS Loader Version: 540.120.3~22. Good Condition! Back to factory settings. Serial Number (system): DGKR90QAGG7F. SMC Version (system): 2.32f21. Number of Processors: 1. System Firmware Version: 481.0.0.0.0.