MD-68 Modem Byte-Back Co Platform(s): TS 2068 Model: MD-68 Date: 1985 Price: $149.95 Rarity: uncommon 300 baud. RS-232 port. Related Content MD-68 Modem Manual (document) SpectraTERM 1.30 for the MD-68 Modem (document) Advertisements Time Designs Magazine v2 n1 p. 34 Tags RS232, Byte-Back Co, TS 2068 People No people associated with this content.