will this power supply work with my pc

[Pgoujon]

hello I need your guys help!!! I have hp envy desktop - te01-1287cb with the intel i7 10700 cpu  and I want to upgrade the power supply so I can add a gpu. can you guys tell me if this power supply will work or if not can you guys let me know which one to buy. this is the one I was told is the highest watts 500W (L05757-800)?  please help 
they said I can only use hp power supply because of the connectors? 

[itsmyname]

I would take your computer to a small "owner/operator" computer store, and let that person view the power-connector on the motherboard, and then sell you a power-supply that is compatible, and will power-up the computer, to show that it is the correct power-supply. 

Doing it this way supports your local (COVID-affected) business, and gives you an immediate solution, and probably "free installation" of the new power-supply. All are good things!

[Pgoujon]

Thanks for your response but that didn't answer my question I just wanna make sure it fits I know how to connect it I know what connectors go where I just wanted to make sure it was the correct one because I read it in another form.  And I am one of those struggling small businesses affected during covid kapture photography.  Thanks for your time and if you could answer my question with the correct information that would be very appreciative other than that have a great day and stay safe

[itsmyname]

The only way to be 100% sure that you have correct information is to actually try it, after getting a "no questions money back" guarantee from the seller of the new power-supply, as you would get from that owner/operator of the computer store.

Is there any small business that is NOT affected by COVID?  Maybe, it is only the manufacturers of PPE (Personal Protective Equipment) who are not struggling.