((Direct Link)) ASUS P553, P553UA, WIFI-BLUETOOTH driver | For Windows ....

ASUS P553UA-series Network Software Installer

BLUETOOTH - WIFI/WLAN DRIVER
ASUS P553, P553UA

For Windows 10-64bit
WIFI/WLAN driver   => Qualcomm Atheros ; Intel ;  Realtek
BLUETOOTH driver => Realtek ; Ralink ;  Intel ; Qualcomm Atheros

For Windows 7-64bit
WLAN / WiFi driver => Qualcomm Atheros ; Realtek ; Intel
Bluetooth driver        =>  Qualcomm Atheros ; Intel ; Realtek