Interface: RS-232 (Serial Port) Cable Interface: RJ11 port Standards: V.92 and earlier ITU standards Max Fax Speed: Class 1.0 and Class 2.1 faxing at speeds to V.34/33.6K bps (Super G3) Features: Error Correction Mode (ECM) provides fast and reliable fax transmissions Parts: 1 year limited Labor: 1 year limited