Product features and parameters Manual draw card, scratch card supports two-way Interface: USB或PS / 2或RS-232, not need an external power supply Stable performance, 獨特的機身設計, 如此順利和準確的劃卡,beautiful and practical Comply with ISO 7811 使用年限: >300,000 times Work mode: read-only Read track: 1,2,3 跟踪, ( 或指定 2 跟踪, 23 跟踪, 12 …