Vintage 1993 Ultra Rare Star Trek The Next Generation Isolinear Optical Chip Key Chain - Brand New Factory Sealed Shop Stock Room Find. Released by D.S.M in 1993 as part of their series of Star Trek Key Rings. This fantastic Star Trek The Next Generation Isolinear Optical Chip Key Ring features a replica of the chips used in the television series but with the added attachment of a key ring. Brand New Factory Sealed Shop Stock Room Find. Discovered in the store room of a closed down shop with a whole host of other Star Trek items from a similar era. All orders received before 4.00pm Mondays to Fridays are dispatched the same day.