Up for sale is a vintage 1991 Apple Macintosh IIsi desktop computer unit (Model M5391) in clean cosmetic condition with minimal yellowing.Included in this listing:- Original Apple Macintosh IIsi complete enclosure (top cover & bottom chassis)- Original internal logic board- Original Sony internal power supply- Original 1.44MB floppy drive & internal SCSI hard drive(Note: Expansion card / NuBus adapter is NOT included)Condition:The unit powers on when plugged in. It has not been tested further due to a lack of compatible vintage Apple peripherals or monitors. The outer case is structurally sound with no major cracks or missing tabs. The internal components, power supply, and logic board appear complete and intact. Sold AS-IS / For Parts or Repair due to the age of vintage hardware.Please review all high-resolution photos carefully for exact cosmetic condition.Shipping:Will be packed with extreme care using thick bubble wrap and heavy padding to protect the vintage plastics during transit. Ships via UPS Ground or USPS.