Fin type cooling,All-aluminum alloy casing with fanless design Extremely fast network,Gigabit network card Watchdog receives a call and turns on the device Dustproof, anti-interference, and Network: 2 x GbE RJ45 Realtek 8111H Interface: 4 x USB3.0, 4 x USB2.0, 2 x DB9 COM,1 x HD, 1 x VGA, 1 Button supporting 12V-19V power input, 1 x headphone jack, 1 x microphone, 2 x antenna connectors for WIFI/3G/4G. Expansion slot:Mini-PCIe x1 half/full SIM card (Generation 6 and above with SIM card slot, supports 3G/4G module, WIFI and Bluetooth) Power input:12V-19V storage temperature:-30℃ to +70℃ working temperature:-20℃ to +60℃ Storage humidity:10%-90% @30℃, no condensation Installation method:Supports desktop and wall mount (The product printed words depending on the batch, but this does not affect use) Color:As Shown Material:Aluminum Alloy Package Contents: 1 * I5-4278U Mini PC Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.