Supra Fax Modem Reference Manual $5.00 For 14,400 & 28,800 Fax Modems Supra Fax Modem Reference Manual quantity Add to cart Add to Quote Continue Shopping Category: Networking Manuals & Communication Software Tags: fax modem, modem Description This 142 page Reference Manual covers the 14,400 & 28,800 Supra Fax Modems. 1995, Part # 70-120-0A