Intel® Server S2600WF Product Family Configuration Guide 
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4.6.2  2U 12 x 3.5” - R2312WTxxx SAS/SATA/NVMe* Data Cable Guide (with SAS Expander) 
For server configurations with 12 drives, Intel recommends a 16-port SAS controller. In the 2U 12x3.5” system configuration, the SAS expander must 
be installed in any available PCIe* add-in slot. Intel provides one SAS expander options to support this drive configuration. 
Table 57. SAS expander option 
 
•  6Gbps data aggregation for 12Gbps data transfer with 6Gb/s devices 
•  Low Profile MD2 PCIe* add-in card form factor 
•  28 internal ports and 8 external ports 
•  Redundant dual-port capable for HA and high performance systems 
•  Power from PCIe x1  
•  Mini-SAS HD 8643 Connectors 
Kit includes: (1) SAS expander card, (2) HD-HD 250mm Expander-to-RAID card cables, PCI brackets for low 
profile and full height  
Required (sold separately): HD-HD SAS data cables – Expander to backplane – See Table 58 
 
Note: The onboard SATA ports are not compatible with SAS expander cards. The onboard SATA ports can only be cabled directly to a specified 
backplane. 
 
Figure 27. SAS 3.0 12 Gb/s expander