User Manual

30
3.6.3 Signal Tables for the Connectors and Headers
Figure 8. USB Header PIN Layout
Table 15. Internal USB 2.0 Headers (1.25 mm pitch)
Pin
Signal Name
1
5 V
1
2
D -
3
D +
4
GND
1
The two USB 2.0 headers on the board can deliver 1A per port.
Connector is Molex part number 53398-0471, 1.25mm Pitch PicoBlade* Header, Surface Mount,
Vertical, Lead-Free, 4 Circuits.
Table 16. M.2 2280 Module (Mechanical Key M) Connector
# Requirement Details
1
Slot form Factor
22x80
2
Number of Slots
3
3
SSD Support
PCIe Gen4 NVMe
4
Slot Type
Socket 3, key M; Must meet Gold plating requirements in 2.6.28
5
Slot Post and screw
Post w/Philips-head screw
installed @ 80mm Torque for
post in 80mm solder nut:
2.5±0.5 in-lbs
Torque for screw in post: Must be slightly less than torque
setting above. Unscrewing screw from post must not cause
post to loosen
Screw is to have ferromagnetic properties for ease of assembly.
6
Power Delivery
Requirement
3.3V
DC
@ 3.5A nominal, 7.0A peak
7
Slot Signals
Pin Signal Name Pin Signal
Name
74
3.3V
75
GND
72
3.3V
73
GND
70
3.3V
71
GND
68
SUSCLK(32kHz)
(O)(0/3.3V)
69
PEDET (NC-PCIe/GND-
SATA)
66
Connector Key
67
N/C