There offering
1)Wi-max + wifi (this works as a router, also has the lan wire option in case you donot have a wifi option in ur pc/laptop)
2)Wi-max device with a lan conectivity, (this doesnt works as a router, Only lan conectivity)
3)And the USB device conect on the go, like the worldcall/warid/ufone/mobilink device
PS: device 1 & 2 are almost identical. And same size rates vary