Model: SK-630 - Color: Black + Silver - Display screen size: 6.5 x 1.8cm - Power supply: 9V - Can te access control card / identification card / time card / contact IC card (4442 / 4428 / 24C01 / 24C02 / 24C16 / 24C64) non-contact IC/ID card M1 card (Mifare 1 S50 / Mifare 1 S70) ID card (EM4100 / EM4102) PVC card (VIP card / membership scorecard / bank card) Medicare card etc. - Operates without the need of PC or laptops -- works completely standalone - Simply press the button on the left to "read" existing card - "DiDi" sound means writing successfully "DiDiDi" sound means writing unsuccessfully - Please use in a legal way - Comes with AC 100~240V power adapter (2-flat-pin plug / 9V 1000mA output / 115cm cable length)