Laptop without Amy integrated wireless connections.

Hi readers, 

I have a Dell Inspiron 5418 i7 with nvidea mx450 laptop. 

This laptop had a removable wifi bluetooth card inside. 

No my  intentions is to have no possible wireless connections possible for this laptop. Only via ethernet via USB c port i think .

I think the motherboard has An integrated BT chip onboard somewhere. After contacting Dell tech support , they could not conform OR Deny this with 100% certenty.

I know The specs pages say IT has An Intel Wlan module wich is removable. Buy does not say anything about other chips on the MB.

Does anybody have the knowledge to be 100% sure that this MB and the boards for ports cannot receiver Any BT OR wifi signal when Wlan is removed?  

This would help me a lot here.

Many thanks !!!!

Kind regatds 

Gobbelein