M.2 ssd B&M key pcb design

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Dushyant Kumar

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hello,
I am designing the PCB in which I am using a lenovo Sl700 M.2 128G SSD B&M key.

This SSD has B&M key and is used as PCIE as well as SATA configuration. Pin out diagram of B Key shows that "Config_(0,1,2,3) should be grounded. so my question is, if I want to use PCIE what will be the status of Config pin?

you can check this link "https://pinoutguide.com/HD/M.2_NGFF_connector_pinout.shtml"

Thanks in advance.
Dushyant
 

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