Replace laptop's usb surge protection chip
This chip is for protection of laptop against ESD. Functionally it is optional, the ports must be fully functional even is this chip is removed. 

If you want to restore full protection, you need to search for "TVS" diodes on, say, Digi-Key database, select 6-pin devices, with proper package (based on pin pitch), and then look into each datasheet to find matching pinout. Your part looks pretty much as IP4220, just drawn upside down.