... second monitor)External I/OMode1(default)1 x 10/100 LAN(RJ45) , 1 x Serial/Com (DB9), 1 x Parallel/ ... x 2), 1 x Line out / MICMode21 x 10/100 LAN(RJ45), 2 x Serial/Com (DB9), 1 x Parallel/LPT ... , 2 x USB 2.0 (Front)Mode31 x 10/100 LAN(RJ45) , 3 x Serial/Com (DB9), 1 x Parallel/ ... TFT LCDPrintersThermal 58mm or 80mm; Dot Matrix 76mmWi-Fi LANWireless LAN, Support IEEE 802.11b/g/n, USB PortCard Reader(MSR ...