Wireless 375 Bluetooth (3.0 + Edr) Adapter 2.4 Ghz with Cable USE For Latitude E6410 E6510 M4500 E5410 E6420 E6430 BT 375 Bluetooth 3.0 + Edr ONLY USE FOR Latitude E4310, E6410, E5410, E6510, M4500, E6520, E6420 Laptop Bluetooth Please check the description & picture before Buying Do not use for IBM/LENOVO/THINKPAD & HP LAPTOP DO NOT USE FOR DELL E5420