This is a genuine Dell replacement IO circuit board (daughter board) with 2 USB jacks, Wi-Fi switch, and 1 FireWire 1394 jack for the Dell Vostro 1710 and 1720 motherboard.
Dell Part Number: N820F
Compatible ONLY with the Dell Vostro 1710 and 1720 laptop/notebook.
Screws NOT included.
see picture..