ASROCK 4X4-4300U, User Manual

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12
2.4 Expansion Slots (M.2 Slots)
There are 2 M.2 slots on this motherboard.
M.2 for SSD: 1 x M.2 (KEY M, 2242/2260/2280) with PCIe x4 and SATA3 for SSD.
* M.2 Key M 2280 (Supported by bracket)
M.2 for Wi-Fi: 1 x M.2 (Key E, 2230) with PCIe x1, USB 2.0 and CNVio for
Wireless.
M.2 Key-M Socket (M2M_1) M.2 Key-E Socket (M2E_1)
* Pin6 and Pin8 are defined as USB2.0
signal to support Key-M to Key-B exten-
sion card.
PIN Signal Name PIN Signal Name
1 GND 2 +3.3V
3 USB_D+ 4 +3.3V
5 USB_D- 6 NA
7 GND 8 NA
9 NA 10 NA
11 NA 12 NA
13 NA 14 NA
15 NA 16 NA
17 NA 18 GND
19 NA 20 NA
21 NA 22 NA
23 NA
33 GND 32 NA
35 PETp 34 NA
37 PETn 36 NA
39 GND 38 NA
41 PERp 40 NA
43 PERn 42 NA
45 GND 44 NA
47 PEFCLKp 46 NA
49 PEFCLKn 48 NA
51 GND 50 SUSCLK
53 CLKREQ# 52 PERST0#
55 WAKE# 54 W_DISABLE1#
57 GND 56 W_DISABLE2#
59 NA 58 SMB_DATA
61 NA 60 SMB_CLK
63 GND 62 NA
65 NA 64 NA
67 NA 66 NA
69 GND 68 NA
71 NA 70 NA
73 NA 72 +3.3V
75 GND 74 +3.3V
PIN Signal Name PIN Signal Name
1 GND 2 +3.3V
3 GND 4 +3.3V
5 PERn3 6 USB_D+
7 PERp3 8 USB_D-
9 GND 10 SATA_LED
11 PETn3 12 +3.3V
13 PETp3 14 +3.3V
15 GND 16 +3.3V
17 PERn2 18 +3.3V
19 PERp2 20 NA
21 GND 22 NA
23 PETn2 24 NA
25 PETp2 26 NA
27 GND 28 NA
29 PERn1 30 NA
31 PERp1 32 NA
33 GND 34 NA
35 PETn1 36 NA
37 PETp1 38 DEVSLP
39 GND 40 SMB_CLK
41 PERn0/ SATA-B+ 42 SMB_DATA
43 PERp0/ SATA-B- 44 NA
45 GND 46 NA
47 PETn0/ SATA-A- 48 NA
49 PETP0/ SATA-A+ 50 PERST#
51 GND 52 CLKREQ#
53 PEFCLKn 54 WAKE#
55 PEFCLKp 56 NA
57 GND 58 NA
67 NA 68 NA
69 PEDET 70 +3.3V
71 GND 72 +3.3V
73 GND 74 +3.3V
75 GND