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3.3.2.2 M.2 2280 Socket 3 Key M NVMe Slots
M.2 NVMe Slot (Socket 3 Key M type 2280)
Pin
Signal
Pin
1
GND
3
GND
5
PCIe_Rx11-
7
PCIE_Rx11+
9
GND
11
PCIE_Tx11-
13
PCIE_Tx11+
15
GND
17
PCIE_Rx10-
19
PCIE_Rx10+
21
GND
23
PCIE_Tx10-
25
PCIE_Tx10+
27
GND
29
PCIE_Rx9-
31
PCIE_Rx9+
33
GND
35
PCIE_Tx8-
37
PCIE_Tx8+
39
GND
41
PCIE_Rx8-
43
PCIE_Rx8+
45
GND
47
PCIE_Tx8-
49
PCIE_Tx8+
51
GND
CCHPC-C78-C
CCHPC-C78-C - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: S.O. - Reviewed by E.S. Copyright © 2023 SECO S.p.A.
CN12
Signal
2
+3.3V_RUN
4
+3.3V_RUN
6
---
8
---
10
---
12
+3.3V_RUN
14
+3.3V_RUN
16
+3.3V_RUN
18
+3.3V_RUN
20
---
22
---
24
---
26
---
28
---
30
---
32
---
34
---
36
---
38
---
40
M.2_SMB_CLK
42
M.2_SMB_DAT
44
---
46
---
48
---
50
M.2_1_RST#
52
M.2_1_CLK_REQ#
Mass storage devices can be connected to the M.2 Key M Slot
present on the board, which allows the plugging of M.2 High
Capacity SSD drives with PCI-e x4 interface, depending on installed
module implementation.
The connectors used for the M.2 SSD slot are CN12 and CN14,
which are standard 75 pin M.2 Key M connector, type LOTES p/n
APCI0359-P003A, H=8.5mm, with the pinout shown in the
respective tables.
On the board, Threaded Spacers allow the placement of M.2 Socket 3 Key M PCI-e SSD
modules in 2280size.
53
M.2_1_CLK-
55
M.2_1_CLK+
57
GND
67
---
69
---
71
GND
73
GND
75
GND
54
---
56
---
58
---
68
---
70
+3.3V_RUN
72
+3.3V_RUN
74
+3.3V_RUN
44
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