BOSS-S2 module. This module attaches to riser 1 on the R750 and adds support for dual redundant M.2 drives. 2 cables attach from the module to the motherboard. Below you can see it installed on riser 1:
Part Category: RAID
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R750 24-Bay Front Controller SAS Cable 05407J
This is a short cable that runs from a front RAID/HBA controller to the motherboard. See this part for the other cable required to configure a front HBA or RAID controller on the R750 24 bay server.
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R750 24-Bay Front Controller SAS Cable 0N57F2
This is an internal Slim-SAS cable designed for the Dell PowerEdge R750 24 bay server. It’s a short run of cable to connect a front RAID/HBA controller to the backplane.
One end of the cable is labeled FCTRL_B. This end plugs into your RAID or HBA controller.
The other end is labeled EXP_DST_SB1 (Expander Destination Sideband 1) and plugs into the backplane.
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R740 8 Bay SFF PCIe RAID Cable 09MHYN
PCIe RAID cable for R740 8 Bay SFF server. This cable will route from the backplane to a PCIe RAID controller installed in one of the risers.
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R540 8 Bay PCIe RAID Cable 0498VF
PCIe RAID cable compatible with the R540 8 Bay LFF server. Cable has just enough length to reach the R540 internal riser designed for a PCIe RAID controller.