... ,USB,PS2 4.super micro size Winson WNL-2000 1D Laser Barcode ScannerFeatures: • 100% independent intellectual property rights, 32-bits ARM ... : 85mA (typical use), max. 150mABarcode scanner OpticsLight source650 nm visible laser diode Scan method Bi-directional scanning Scan rate 100 scans ... , DC power supply (RS232/TTL,RS485) WNL-2000 Stationary 1D Laser Barcode Scanner