Brand: I Machine Model: P1 O/S Windows CPU J1900 Memory 4GB (Optional 8GB) SSD 64GB Main Screen 15.6 inch, Capacitive Touch Screen Customer Screen 10.1 inch, LCD Speaker 1.5W Wired Network TCP/IP Ethernet(100M) Interface 1*Cash Drawer Interface (RJ12) 1*Serial Interface (DB9) 4*USB 2.0 Ports 1*Ethernet Interface (100M) 1 Headset jack 3.5mm Adapter 100-240V, AC Dimension 315.5mmx379mmx179.1mm Certificate CCC, FCC, CE