This is a genuine Dell OEM 330-watt AC Power Adapter (Laptop Charger) for the Alienware M18x and M18xR2 Gaming Laptops.

This Dell 330-watt power adapter is shipped with the M18x series systems that have Dual-Graphics Cards.

Compatible Dell Laptops:

-Alienware Area-51m R2
-Alienware Area-51m
-Inspiron 27 7775
-Alienware 17 R1
-Alienware X51 R3
-Alienware X51 R2
-Alienware 17 R5
-Alienware X51
-Alienware 17 R4
Alienware M18x
Alienware M18x-R2

Specifications:
- Model: DA330PM111 / ADP-330AB
- Dell P/N: Y90RR, 0Y90RR or XM3C3 GT1CX
- 100-240V 50/60Hz Input.
- Output 19.5VDC @ 16.9A
- 330-watt
- power cord included

This power adapter is required for upgrading to dual graphics cards- in the M18x series laptops.