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4.4 Pin Definitions
HDD Power Connectors
(PWR_HDD1)
(PWR_HDD2)
(PWR_HDD3)
SSD Power Connectors
(PWR_HDD4)
(PWR_HDD5)
(PWR_HDD6)
(PWR_HDD7)
MiniSAS HD Connectors
(HBA0)
(HBA1)
SMB Connector
(5-pin BMC_SMB1)
USB 2.0 Header
(9-pin USB_HEADER1)
+5V
GND1
GND2
+12V
+12V_HDD
GND
GND
+5V_HDD
1
SDA
GND
SCL
+3V_SEL
GND
USB_PWR
-B
+B
GND
DUMMY
1
GND
+A
-A
USB_PWR
2U4FH-8L
The 4-pin connectors
provide power to the
backplane.
The 4-pin connectors pro-
vide power to the SSDs.
These connectors are used
to connect a mini-SAS HD
cable to the motherboard.
The SMB (SubMiniature
version B) connector provides
a communication interface
between the backplane and the
motherboard.
The header supports two USB 2.0
ports on the front panel.
35
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