2 add note about uses
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That looks like a footprint for an M.2 connector (though not the exact one in the picture below). Specifically, it looks like an "M key" connector, so it could be connected to a PCIe interface and/or a SATA interface. They are often used for things like SSDs and Wi-Fi cards.

M.2 connector

That looks like a footprint for an M.2 connector (though not the exact one in the picture below). Specifically, it looks like an "M key" connector, so it could be connected to a PCIe interface and/or a SATA interface.

M.2 connector

That looks like a footprint for an M.2 connector (though not the exact one in the picture below). Specifically, it looks like an "M key" connector, so it could be connected to a PCIe interface and/or a SATA interface. They are often used for things like SSDs and Wi-Fi cards.

M.2 connector

1
source | link

That looks like a footprint for an M.2 connector (though not the exact one in the picture below). Specifically, it looks like an "M key" connector, so it could be connected to a PCIe interface and/or a SATA interface.

M.2 connector