Technical specification: (SPECIFICATIONS): ·Read-write standard: ISO7810,7811-1~5, IBM ·Power source: DC+5V Reads the electric current: d85mA Writes the electric current: d150mA ·Laikha speed: 10cm-120cm/s ·Recording density: First track: 210BPI Second track: 75BPI/210BPI may elect Third track: 210BPI ·Recording character number: First track: 76 characters Second track: 37/104 character Third track: 104 characters ·Magnetic head life: Least 800,000 times ·Communication: RS-232C serial asynchronous communication Environment request: Work: 0-50 20-90%RH Memory: - 20-70 20-80%RH Size: W180mm*L245mm*H135mm