... DDR3 1-2G RAM,HDD 320G; 15" All In One Touch Screen POS System High resolution and durable featured, 15" ... All In One Touch Screen POS System PALON/41E from LIVIL could be ... Track, USB, InternalIC Card ReaderUSB/RS 232 , InternalBarcode scannerInternal/External, USB/RS 232 InterfaceWorking EnvironmentTemperature0~40°CHumidity20% ~80%CertificationCCC, ...