Product features and parameters Manual draw card, scratch card supports two-way Interface: USB ou PS / 2 ou RS-232, not need an external power supply Stable performance, o design de corpo único, tão suave e card draw precisas,beautiful and practical Comply with ISO 7811 Use vida: >300,000 times Work mode: read-only Read track: 1,2,3 pista, ( ou especificar 2 pista, 23 pista, 12 …