D620 is a highly efficient and powerful thin client for both local computing and Microsoft, Citrix, VMware virtual desktop environments. It has a zero-client style desktop with TOS or a Windows 10 IoT. SPECIFICATION: Processor: Intel quad core 2.0 GHz Available Operating System: WIN 10 IOT / TOS1 Protocol Clients: Citrix receiver/ Microsoft Remote Desktop Client / VmwareTM Horizon ViewTM Client Management: CDMS2 RAM (DDR4): 4GB Storage (SSD): 64GB mSATA Display: 2 x DP Resolution: 3840×2160@60Hz (DP) 3 LAN: x 1 (10/100/1000Mbps,RJ45) USB 2.0: x 6 USB 3.0: x 2 Serial Port: x 1 (extensible to 4 via cable) Parallel Port: x 1 PS/2 Port: x 2 Audio: Line-out x 1 , Mic-in x 1 Dimension: 206mm x 48mm x 215mm (stand excluded)/ 206mm × 83mm ×223mm (stand included) Net Weight: 1.18 kg Adapter: Worldwide auto-sensing 100-240V AC, 50/60 Hz, 12V/3A DC TDP: < 10w Mountings: Vertical feet standard Security: Standard Kensington anti-theft keyhole Cooling: Fan-less Convection Operation Temperature: 0℃ to 40℃ Relative Humidity: 30% to 90% non-condensing