While inheriting the basic functions and design philosophy of the current PlayStation 2, the internal design architecture has been completely overhauled, resulting in a slimmer and more lightweight design. Internal volume has been reduced by 75%, overall weight has been halved and thickness trimmed down to 2.8 cm (current thickness is 7.8cm). Its size is almost as small as a hardcover book, making it easier to carry around and enjoy games and DVD videos anytime, anywhere. The system is equipped with an integrated Ethernet port for network gaming.