As the first asus n600 simultaneous dual band wi fi adsl router the dsl n55u provides a stylish design sophisticated features and easy setup alongside supreme wireless and wired networking for the home two usb 20 ports allow the dsl n55u to share printing and scanning functions on a network and operate as high speed nas network attached storage when an external storage device is connected it is fully dlna certified and can act as a media server and home entertainment center any devic