It is "Dual Band" WIRELESS N ( 2.4G hz and 5.0G hz) + BLUETOOTH BT 4.0
It is a "half-mini" size card

Compatible with:

For Alienware 14
For Alienware 17
For Alienware 18
For Alienware M14XR2
For Alienware X51 R2
For XPS L322X
For XPS one 2720
Not work in for HP/Compaq or in for IBM/Lenovo

Package Included:
1 x Wireless card