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Chapter 4: Motherboard Connections
4.6 Storage Ports
SATA Ports
Eight SATA 3.0 ports are located on the X12SPW-TF/-F motherboard supported by the
C621A chipset. These SATA ports support RAID 0, 1, 5, and 10. In addition, there are also
two S-SATA ports (S-SATA0, S-SATA1) that include SATA DOM power. SATA ports provide
serial-link signal connections, which are faster than the connections of Parallel ATA. Refer to
the tables below for pin definitions.
Note
: For more information on the SATA HostRAID configuration, please refer to the Intel
SATA HostRAID user's guide posted on our website at
www.supermicro.com/support/manuals.
NVM Express Connections
There are two Slimline SAS connectors located on the motherboard to support two PCIe
4.0 x4 NVMe connections. This connector provides high-speed and low-latency connections
directly from the CPU to NVMe Solid State (SSD) drives. This greatly increases SSD data-
throughput performance and significantly reduces PCIe latency by simplifying driver/software
requirements resulting from direct PCIe interface from the CPU to the NVMe SSD drives.
NVME0/1 Connector
Pin Definitions
Pin#
Signal
Pin#
Signal
1
GND
20
RX4P
2
RX0P
21
RX4N
3
RX0N
22
GND
4
GND
23
RX5P
5
RX1P
24
RX5N
6
RX1N
25
GND
7
GND
26
SB7B
8
SB7A
27
SB4B
9
SB4A
28
GND
10
GND
29
SBB+
11
SBA+
30
SBB-
12
SBA-
31
GND
13
GND
32
RX6P
14
R2XP
33
RX6N
15
RX2N
34
GND
16
GND
35
RX7P
17
RX3P
36
RX7N
18
RX3N
37
GND
19
GND
