Can a Windows 10 Pro key be transferred to different hardware?

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I got a new Asus F512DA-EB51 cheap yesterday VIA Amazon Prime day. My current Asus S500CA-US71T has a Windows 10 Pro key attached to the hardware (I bought that key on eBay for $8) so not a big loss but I am cheap. What I remember doing in this in the past with my same Microsoft account and one of the said eBay Pro keys but I don't exactly remember what I did it probably was successful because this was a prebuilt Dell OptiPlex with Windows 7 Pro but I don't remember all of the details of what I did.

 

[Format _C:]

I got a new Asus F512DA-EB51 cheap yesterday VIA Amazon Prime day. My current Asus S500CA-US71T has a Windows 10 Pro key attached to the hardware (I bought that key on eBay for $8) so not a big loss but I am cheap. What I remember doing in this in the past with my same Microsoft account and one of the said eBay Pro keys but I don't exactly remember what I did it probably was successful because this was a prebuilt Dell OptiPlex with Windows 7 Pro but I don't remember all of the details of what I did.

Never mind I am going to get another key from another member here by the name new2019