This is a vintage 486 Ibm computer system with turbo button and 1/2 the slots are filled with ram cards.It comes with several large expansion cards included as shown. I comes with a hard drive and a floppy drive also.The system works but I don't have the top cover to the case. It has an American megatrends 486DX ISA Bios chipin it. This system belonged to the father of modern-day VoIP telephony Jim Dixon himself. It has 2 voice processing boards in it. I have many other cards that have Jim Dixon stamped in the board itself because he made many of the boards and I will list those in a seperate sale. It has a dialogic crop model LSI/120 and a dialogic corp D/121 large expansion cards that are connected together with a ribbon cable. Each of those cards will cost you $70 alone. just enter item401736725701 to see. I added more picturesof the hard drive for a request from a customer.