I have a new hp laptop 17-by3065st and will need an updated RJ-45 for this pc - What do I buy?

[babe2]

I need to find a new RJ-45 cable to work on this new laptop and to work with a standard modem plug in - wowway is the internet provider-my old cable won't work with this laptop

[erico]

What is the brand and part number of the modem that your internet provider gave you?

What you will need is a Cat6/Cat6a/Cat7 or Cat8  ethernet cable to connect between your router and the notebook.

I had a non working internet experience with my home network setup with a Cat 5 ethernet cable in Europe.  I replaced the ethernet cable with a Cat 6 and life was good.

[babe2]

Will have to get one of those.

??My pc has a larger ethernet slot than my modem. What to I buy to connect the new ethernet cable in the pc to the old cable to go into the modem?

Also when can you use or what are SS usb slots used for?  Can I use them for a regular usb slot?

Thanks much

[erico]

"??My pc has a larger ethernet slot than my modem. What to I buy to connect the new ethernet cable in the pc to the old cable to go into the modem?" 

How about rephrasing that. It is not understandable in English. 

The Cat6 through Cat8 connectors on the cable fit into the older Cat4 and

Cat 5 headers in notebooks and desktop PCs.

USB SS headers are just higher bandwidth USB ports. SS stands for super speed. USB 2.0 is 480 MB/s USB 3.0. 3.1 and 3.2(gen1) are 5 GB/s

Read the document at the hyperlink below.

https://www.tripplite.com/products/usb-connectivity-types-standards