These were so inexpensive I bought three. Including the original, now I have one in every room in the house where I normally use my laptop.
There's one con: The section of cord that goes from the "brick" to the laptop is only 44" long, which is about two feet shorter than on the original. This is inconvenient in some usages. For example, the brick doesn't reach the floor when my laptop is on my kitchen table with the cord routed around the back, so I have to leave the brick on the table cluttering up my workspace (or let it hang down, putting strain on the jack). Plus of course the decrease in total length of the cord means you can't sit quite as far from an outlet as with the original. Overall there are so many places where the missing two feet is not needed anyway that it's still a good value.
Average Rating:

Brand: sunvalleytek
Product Description:
Compatible Part Numbers:
ED494AA#ABA, 391172-001, 384019-003, PA-1650-02HC, 384019-001, 384021-001, 391173-001, 384020-001, 384020-003, 409992-001, ED495AA, PA-1900-18H2, PPP014L-SA, 384019-002, 384020-002
Fit Laptop Models:
HP Compaq nc2400 Notebook PC, HP Compaq nc4400 Notebook PC, HP Compaq nc6320 Notebook PC, HP Compaq Business Notebook nc6400 Series, HP Compaq Business Notebook nc8430 Series, HP Compaq Business Notebook nw8440 Series, HP Compaq Business Notebook nw9440 SeriesHP Compaq nx6110 Notebook PC (Not All), HP Compaq nx6115 Notebook PC (Not All), HP Compaq nx6125 Notebook PC (Not All), HP Compaq nx6310 Notebook PC, HP Compaq Business Notebook nx6315 Series, HP Compaq nx6320 Notebook PC, HP Compaq nx6325 Notebook PC, HP Compaq nx7300 Notebook PC, HP Compaq nx7400 Notebook PC, HP Compaq Business Notebook nx8420 Series, HP Compaq nx9420 Notebook PC,HP Compaq Tablet PC tc4400,HP Compaq tc4200 Tablet PC,HP EliteBook 2530p Notebook PC,HP EliteBook 2730p Notebook PC,HP EliteBook 6930p Notebook PC,HP EliteBook 8530p Notebook PC,HP EliteBook 8530w Mobile Workstation,HP Pavilion DV4-1000 SeriesDV4-1000, DV4T-1000, DV4Z-1000 CTO,HP Pavilion DV5-1000 Series,DV5-1120, DV5-1120US,DV5-1124, DV5-1124CA,DV5t, DV5z,HP Pavilion DV7, DV7t, DV7z, Compaq Presario A900, Compaq Presario CQ40, Compaq Presario CQ45, Compaq Presario CQ50, Compaq Presario CQ50-100,Compaq Mini-Note 2133, Compaq Presario B1210, HP Pavilion G5000, G6000, and G7000
Features:
- Replacement HP/Compaq 18.5V 3.5A AC Adapter
- Input: AC100-240V (worldwide use),Output: DC18.5V 3.5A,Power: 65W
- Connector size: Internal Diameter: 5.0mm,External Diameter: 7.4mm,With central smart-pin inside
- Item Includes: AC Adapter and Power Cord.Full 12 months warranty
- Make sure the part will match your laptop. If there is no central pin in the connector of your original AC adapter, please stop bidding this item
Available at Amazon
Lowest New Price: USD 6.32
Customer Reviews

Works fine...
The cord is about a foot shorter than expected, but that has little affect on the product's usability. Good buy for the price.