Direct link....WIFI/WLAN-BLUETOOTH Driver ASUS VM490LN / VM490L / VM490LN

ASUS VM490LN / VM490L Laptop Network Software Support

WLAN / WIFI & BLUETOOTH DRIVER
ASUS VM490LN / ASUS VM490L / ASUS VM490-LN / LAPTOP

For Windows 8.1 (64-bit)
WIFI / WLAN DRIVER => Realtek
WIFI / WLAN DRIVER => Broadcomm
WIFI / WLAN DRIVER => Intel
WIFI / WLAN DRIVER => Qualcomm Atheros

BLUETOOTH  DRIVER => Realtek
BLUETOOTH  DRIVER => Broadcomm
BLUETOOTH  DRIVER => Intel
BLUETOOTH  DRIVER => Qualcomm Atheros