Compatible HP 90W AC adapter of 7.4mm has good contact and output power just as original versions do in actual work. As we have list the laptop models and compatible part numbers into the certain charger product pages, users can search and check if yours are included there. In most cases, this 7.4mm 5.0 mm HP 90W AC adapter of 19V and 4.74A is guaranteed to meet or exceed OEM specifications and all the pieces have been strictly designed and tested to ensure it can work and charge securely and steadily.
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Actually, we have many pieces of the 90W HP/Compaq Business notebook chargers to ensure that all the HP users who require external charger can get a suitable and high cost performance one from us. And we supply technique support and regular customer service to users to solve all the relevant problems well.