Qotom Fanless Mini PC Q190G4-S01 with Intel Celeron Processor J1900 (Quad-Core 2M Cache, 2 GHz, up to 2.42 GHz): Size: 134*126*37mm Net weight: 620g Gross weight: 1.5 kg Onboard CPU: Intel Celeron Processor J1900 (Quad-Core 2M Cache, 2 GHz, up to 2.42 GHz) Processor Graphics: Intel HD Graphics Power Consumption: 10W Memory: 1 x Memory Slot, Support 1333/1600MHz DDR3L,1.35V,SO-DIMM Memory Hard drive: 1 x mSATA SSD slot; LAN: 4 x RJ-45 port - 4* Intel I211-AT Gigabit LAN Front-Panel Connectors: 1 x Power switch button (Power LED) 1 x HDD LED 3 x USB 2.0 ports ,1 x USB 3.0 ports 1 x VGA port Back-Panel Connectors: 1 x 12V DC input 4 x RJ-45 port 1 x WIFI for Option(only support USB protocol) Mini PC QOTOM- Q190G4-S01 can act as can be configured as a firewall, LAN or WAN router, VPN appliance, DHCP Server, DNS Server, and IDS/IPS with optional packages to deliver a high performance, high throughput front-line security architecture at a excellent price per gigabit. It is a fanless device and work quietly. Warranty: 1.For all the mini pcs you bought from us, we provide a full one-year warranty. 2.We assure you that all the mini pc and accessories have been tested before delivery. 3.If the products do not work well, contact us, pls! We will try to figure out workable solutions with our professional team. 4. it will come with windows 7(unactivated) for test. You also can install OS and software package by yourself. F11 key boot from USB Drive. Delete key enter BIOS.