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, det unikke organ design, så glat og præcis draw kort,beautiful and practical Comply with ISO 7811 Brug livet: >300,000 times Work mode: read-only Read track: 1,2,3 spore, ( eller angive 2 spore, 23 spore, 12 …