Original MSR606 USB card reader writer encoder 3 Tracks Hico& ... or write card with RS-232 /USB outputWriting and verifying data on single, dual, or triple track in one swipe ... supply External switching power 24V/2.5A Communication Standard USB cable Ripple 50mVp-p or less Dielectric strength 500 ... Class B, CE ClassB, UL, cUL,ROHS MSR606 Usb 3 Tracks Swipe Card Reader Writer Encoder upgrade from msr206 ...