X330: based on X230/x220.
i7-3520m/I7-2640m
1: mod the screen to: 12.5 2560X1440,sharp IPS . or 13.3 1920X1080 ,sharp IPS.
2: MOD the keyboard to 7-LINE keyboard (from X220) .
3: MOD the wifi CARD to 80211.AC (BCM94352) and BT 4.0
i7-3520m/I7-2640m
1: mod the screen to: 12.5 2560X1440,sharp IPS . or 13.3 1920X1080 ,sharp IPS.
2: MOD the keyboard to 7-LINE keyboard (from X220) .
3: MOD the wifi CARD to 80211.AC (BCM94352) and BT 4.0