Maxing out the memory to 8GB (2x 4GB sticks) will allow for better multitasking and smoother web browsing.
1x ExpressCard slot (34mm), SD card slot, and Memory Stick Duo slot.
Gigabit Ethernet (RJ-45), 802.11b/g/n Wireless LAN, and Bluetooth 2.1+EDR.
may feel slow under modern software like Windows 10. However, it is highly upgradeable: