Configuration for Q190S Mini PC Computer Case S01 Size: 134 x 126 x 38mm (support mSATA SSD) Case S02 Size: 134 x 126 x 45mm (support mSATA SSD and 2.5 inch Sata HDD) We send Case S01 by default. If you need Case S02, pls leave us a massage. Fanless Onboard CPU: Intel Celeron Processor J1900 (Quad Core 2M Cache, 2 GHz, up to 2.41 GHz) Memory:1333/1600MHz DDR3 SO-DIMM Memory - 1 x Memory Slot, Supports up to 8GB Memory Storage: mSATA SSD - mSATA port - Larger capacity mSATA SSD is optional (Support up to 256 GB) Onboard VGA: Intel HD Graphics LAN: 2 x RJ-45 ports - Realtek RTL8111E 10/100/1000 Controller Audio: Realtek ALC662 HD Audio Power Consumption: 10W Warranty: 1 year Operating System: Support Windows 7/ Windows 8/ Windows 10/ Linux etc. (not support Windows XP) Front-Panel Connectors 1 x Power switch button ( Power LED ) 1 x HDD LED 1 x USB 3.0 port 3 x USB2.0 ports 1 x Microphone port 1 x Serial port Back-Panel Connectors 1 x DC 12V DC input 1 x HD Video port 1 x VGA port 2 x RJ-45 ports 1 x Speaker port Package including: 1 x Q190S Mini Computer 1 x Power Adapter 1 x Power Plug 1 x VESA Mount Bracket Remarks: 1. This mini pc has 2 gigabit lan ports, support firewall such as OPNsense, CentOS etc. 2. Operating System: Ubuntu is pre-installed by default. User name is oem, password is oem123 . Or wanna other OS, pls leave us a message.