How can I check my Motherboard ports/interfaces?

Hello, I am following FAQ post to see if I am worthy.

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I am stuck here:

• What interfaces/ports does it support? (internally)
  • M.2 support
    • Slot Types (A/E for Wifi or B/M for storage and PCIe)
    • Note for B/M: does it support SATA only or SATA and NVMe? And the PCIe lanes given for that NVMe slot (if possible and needed)
  • PCIe Slots (and their speeds, gen, lanes...) -- Mostly (and probably only) for desktops
  • SATA Ports (if any)
    

Is there a way that I can check these without opening my laptop? (Im afraid of making warranty void)
My motherboard model is Lenovo LNVNB161216