Estone T420 X220 T520 W520 Genuine New Bluetooth Card BT3.0 FRU:60Y3275 For ThinkPad Bluetooth Daughter Card Bdc-3.0 for Lenovo Thinkpad FRU:60Y3271 Compatible with Lenovo Thinkpad T420 T420i X220 x220i X220T T420S E420T520 W520 so on. Quantity:1pc 1 X BT3.0 FRU: 60Y3275