2.5.2.19 NGFF_KEY_E1: NGFF M.2 KEY E Connector
IT32 NGFF M.2 connector supports M.2 card applications:
1. PCIe I/F + USB
2.5.2.20 NGFF_KEY_M1: NGFF M.2 KEY M Connector
IT32 NGFF M.2 connector supports M.2 card applications:
1. PCIe I/F + USB
IT32 SBC User Manual
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