Supermicro H12SSL Series User Manual page 38

H12SSL-i/C/CT/NT User's Manual
L-SAS Ports (L-SAS0~L-SAS7), H12SSL-CT & H12SSL-C Only
The motherboard supports eight SAS ports on two onboard connectors, L-SAS0~L-SAS3 and
L-SAS4~L-SAS7. Connect hard drives to these SAS ports using a MiniSAS to 4 breakout
cable, one for each connector that supports up to four drives each.
NVM Express
Connections Two NVM Express ports are located on the serverboard. These ports provide
high-speed, low-latency PCIe 4.0 x8 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 resulted from direct PCIe
interface from the CPU to the NVMe SSD drives.
Types
SATA
SAS3
NVMe
SATA/SAS Connectors
Pin Definitions
Pin# Signal
1 Ground
2 SATA_TXP
3 SATA_TXN
4 Ground
5 SATA_RXN
6 SATA_RXP
7 Ground
Number of Supported Drives on Different Models
H12SSL-i H12SSL-C
8 8
0 8
2 0
38
H12SSL-CT H12SSL-NT
8 0
8 0
0 4