This says it is 330 wats, but the original is 180w so will it fry my computer?

I have actually used this on not only my m18x but also on an alienware 18 and a super tiny alienware 15. It has also worked on a dell inspiron. They all use the same tip from dell. I have never noticed any issues and can only assume the brick is throttling the appropriate power for the device =)

Would this work with an Alienware Alpha R2? I put it under a lot of intense use when gaming, no overclocks, but the PSU overheats and shuts down after a couple hours every once and a while, I know it's not the CPU or GPU because GPU temp stays under 80° and CPU under 80° as well. I really can't afford to send the system in because I also use it for work.

Yes. I replaced the original PSU on my R2 with this and haven't had a shutdown since.

Will this work with the alienware x51?

Yes, using it on my x51 R2 right now. Haven't has any issues. Running an Intel i7-4790K and a Sapphire Radeon RX 470 4GB.

$100^.94

Free 30-day Returns

Limit 99999 per customer.

Price alert

Add to wish list

Sold by Parts-People, Inc

4.6 (96 seller ratings)

Shipped by Parts-People, Inc

Meet Your Seller

Parts-People, Inc

See Seller Store

Main image of 330 Watt Ac Adapter Charger w/ Power Cord for Dell Alienware M18x M18x R2 Laptops - Replaces XM3C3 DA330PM111

Alt view image 2 of 8 - 330 Watt Ac Adapter Charger w/ Power Cord for Dell Alienware M18x M18x R2 Laptops - Replaces XM3C3 DA330PM111

Alt view image 3 of 8 - 330 Watt Ac Adapter Charger w/ Power Cord for Dell Alienware M18x M18x R2 Laptops - Replaces XM3C3 DA330PM111

Alt view image 4 of 8 - 330 Watt Ac Adapter Charger w/ Power Cord for Dell Alienware M18x M18x R2 Laptops - Replaces XM3C3 DA330PM111

Alt view image 5 of 8 - 330 Watt Ac Adapter Charger w/ Power Cord for Dell Alienware M18x M18x R2 Laptops - Replaces XM3C3 DA330PM111

Alt view image 6 of 8 - 330 Watt Ac Adapter Charger w/ Power Cord for Dell Alienware M18x M18x R2 Laptops - Replaces XM3C3 DA330PM111

Alt view image 7 of 8 - 330 Watt Ac Adapter Charger w/ Power Cord for Dell Alienware M18x M18x R2 Laptops - Replaces XM3C3 DA330PM111

Alt view image 8 of 8 - 330 Watt Ac Adapter Charger w/ Power Cord for Dell Alienware M18x M18x R2 Laptops - Replaces XM3C3 DA330PM111

Shop All DELL Products | Visit Parts-People, Inc Store

330 Watt Ac Adapter Charger w/ Power Cord for Dell Alienware M18x M18x R2 Laptops - Replaces XM3C3 DA330PM111

Used - Acceptable

16.9A
19.5V

Overview

Specs

Any questions? Our AI beta will help you find out quickly.

Try me now

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 M18x, M18xR2, 17 R1, 18 R1, 17 R4, X51, 17 R5, Area-51m, Area-51m R2, m17 R3, x17 R1, m17 R4, x17 R2, x16 R1, m18 R1, m16 R1, m16 R1 AMD, m18 R1 AMD
-Inspiron Desktop 27 7775
-Alienware Desktop X51 R2, X51 R3
-G Series G15 5530, G16 7630, G15 5535

Specifications:
- Model: DA330PM111 / DA330PM190 / ADP-330AB / HA330PM220
- Dell Part Number: GMT0M XM3C3 Y90RR GT1CX 1MDV8 HJCCJ
- 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.

Model
Brand	DELL

Details
Battery Type	laptop-computer-chargers-and-adapters
AC Adapter Voltage	19.5V
AC Adapter Current	4.4A
AC Adapter Output Power	16.9A

Additional Information
First Listed on Newegg	November 05, 2025

Warranty & Returns

Warranty, Returns, And Additional Information

Warranty

Please contact the Seller directly for warranty information. Warranty information may also be found on the Manufacturer's website.
CONTACT

Return Policies

Return for refund within: 30 days
Return for replacement within: 60 days
This item is covered by Parts-People, Inc Return Policy

Manufacturer Contact Info

For a directory of all our manufacturers, please click below.
Manufacturers Directory

Item#: 9SIAG6ZKN49313