Dell Inspiron Duo 1090 | SATA Interface and Hardware Upgrade

Hi, i'm about to get this old netbook, anyone know what is the latest SATA Interface it supported? Is it SATA II or SATA III?

i'm going to upgrade it since some of the parts are outdated.

Will Duo compatible with the parts i listed?

Kingston SSD A400 or Samsung EVO 850 (depends on the SATA Interface which Duo Supported since if even i bought the 850, i won't get the advantages of its speed perfomance if the Duo Motherboard only support SATA II Interface, if it's SATA II then i'll go with Kingston)

Intel Wireless Card 7260

Samsung 2GB DDR3 1333MHz (Anyone know, is the netbook support RAM capacity more than 2GB?)

I'm really appreciate those who answer ;D