Re: Network Card or USB?
not sure what you mean exactly ... so ill explain wired and wireless.
you could go wired and get a network card (then plug in via ethernet cable). its fast, reliable and cheap.
next option is wireless, either via a pci network card (said to be more reliable than usb, but involves taking your pc's side panel off to install it). the easiest, and the option id suggest is a wireless usb adapter. its quick and easy to setup, and works great.
Laptop spec: ASUS X53E, i5 2430m 2.4ghz, 3gb ram, 320gb hdd, intel hd graphics, usb 3.0