Texas InstrumentsTI-99/4 Expansion Unit w/cover Start Price USD 249.49 Current Price USD 249.49 Time Left - Bid Count 0 Buy It Now Price - Reserve Price - Start Time Tuesday, September 16, 2008 End Time Thursday, October 16, 2008 Location East Aurora, New York See more about 'Texas InstrumentsTI-99/4 Expansion Unit w/cover' Description  Rare Texas Instruments Peripheral Expansion Unit PHP1200 Includes Flex Cable Interface Disk Controller Module 5 1/4" Disk Drive Cover Panel In very nice condition   Very clean If you are a collector you will want to have this rare piece of microcomputer history for your vintage computer collection.  Due to age sold AS-IS Powered by eBay Turbo Lister The free listing tool. List your items fast and easy and manage your active items. Place a Bid!