Product features and parameters Manual draw card, scratch card supports two-way Interface: USB eller PS / 2 eller RS-232, not need an external power supply Stable performance, den unike body design, så jevn og nøyaktig trekke kortet,beautiful and practical Comply with ISO 7811 bruk livet: >300,000 times Work mode: read-only Read track: 1,2,3 spor, ( eller angi 2 spor, 23 spor, 12 …