BCM MX680RD - M.2 Connectors: M2 M1, M2 E1, M2 M2

MX680RD User’s Manual
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1.9.2 M.2 Connectors: M2M1, M2E1, M2M2
The M.2 connectors provide different supports for PCIe, SATA III, and USB interfaces.
Top Side:
Bottom Side:
Item Description Note
M2E1 M.2 Key-E Slot (2230) Supports PCIe x1, USB2.0, CNVi
M2M1 M.2 Key-M Slot (2242/ 2280)
(Top Side)
Supports PCIe x4, SATA3.0
M2M2 M.2 Key-M Slot (2280)
(Bottom side)
Supports PCIe x4, SATA3.0