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Chapter 4: Motherboard Connections
4.6 Storage Ports
NVM Express Connections
Four NVM Express ports are located on the motherboard. These NVMe ports provide PCI-E
3.0 x4 connections. P1_NVME0/1 are supported by CPU1. P2_NVME0/1 are supported by
CPU2. The NVMe ports provide high-speed low-latency connections directly from the CPU
to NVMe Solid State (SSD) drives. This greatly increases SSD data-throughput performance
and significantly reduces PCI-E latency by simplifying driver/software requirements resulting
from direct PCI-E interface from the CPU to the NVMe SSD drives.
I-SATA 3.0 and S-SATA 3.0 Ports
The X11DPU-Z+ has eight I-SATA 3.0 ports (I-SATA0-3, I-SATA4-7) and two S-SATA
(S-SATA4, S-SATA5) on the motherboard. These SATA ports are supported by the Intel PCH
(Intel C621). S-SATA4/S-SATA5 support Supermicro SuperDOMs (Disk_on_Modules), which
are yellow SATA DOM connectors with power pins built in, and do not require external power
cables. Supermicro SuperDOMs are backward-compatible with regular SATA HDDs or SATA
DOMs that need external power cables.