Built in power backup to Provide 1 hour power Backup
More Details of Asus ET2040IUK-BB007M 19.5-inch All-In-One Desktop :
19.5-inch All-in-One PC with built-in backup power, innovative hands-free gesture control and full I/O connectivity
Smart backup power prevents data loss up to one hour
Intuitive gesture control for hands-free entertainment
Comprehensive array of I/O ports with three USB 3.0, three USB 2.0 and HDMI-output
The ASUS et2040 provides a great experience without burning a hole in your pocket.I have been using it for over a week and overall performance has been great so far. Pros 1.Compact and sleek design 2.Incredible response speed. 3.Has built in wifi and hdmi out. 4.USB 3.0 ports 5.Built in power backup.
Tip: for Fast performance IMHO negative reviewers should try to uninstall McAfee immediately and go to native windows 8 defender