This was bought for a laptop, which is used 99% time by an adult mostly at a desk with not much movement and therefore stress on the power cable,
This was my my 3rd adapter for my five year old laptop [original replaced under warranty], I didn't want to pay the exorbitant prices for an HP original and found this at a very reasonable price.
The laptop developed power connections problems within about 6 months, initially I thought this was due to the middle pin on my ageing laptop becoming loose and manipulation, wiggling and repositioning of the power cable near to where the plug connected to the laptop would normally resolve things. However the power 're-connection' problems gradually became worse and moving the cable took longer to find the right 'spot' to restore power . As my lap top needed another repair I had them look at the pin, there was nothing wrong and it turned out the power supply unit was the fault!
So it may be cheap, but may not last as long as you would like!