Extensive connectivity with power-delivery technology ASUS Chromebox 3 can charge a connected phone or accessory & can also receive power from a supported display or other device eliminating the need for a separate power adapter for a cleaner workspace uncluttered with cables. Dual display productivity ASUS Chromebox 3 supports dual displays via HDMI & USB (Universal Serial Bus) Type-C without the need for an additional graphics card making multitasking a whole lot easier. Spread out your documents mirror content or extend a single browser across multiple displays. Incredibly silent & energy efficient ASUS Chromebox 3 is ideal for office environments because it operates in remarkable silence thanks to optimized fan settings that keep noise levels down. & it doesn't get much noisier at full load either. The fan helps lower operating temperatures so you're guaranteed silent stable performance. Built-in security features ASUS Chromebox 3 is designed from the ground up with security in mind so you'll be safe from viruses & malware. There's no need to buy & install additional security software & certainly no time wasted trying to get in touch with tech support..