Compatible Terminals: Verifone: VT650P, VX670, VX675, VX510, VX520, VX570, V400M, VX690, VX810 Duet and VX820 Duet Ingenico: Desk/5000, Move/5000, iWL252, iCT250, iWL200 and iWL250 Castles: C1000F Pax: A920, S920