Areca 24/4 Internal/External Port Pcie 3.0 12 Gb/s SAS/SATA Raid Controller 2Gb Cache - Manual (Page 33)

HARDWARE INSTALLATION
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Figure 2-11, SFF-8643 to 4xSATA Cable
2.4 SAS Cables
You can connect the end devices to each other through direct
cables or through the SAS expander/backplane connections. The
12Gb/s SAS RAID controller supports daisy-chain expansion up to 8
enclosures. The following is an example of some internal SAS/SATA
cables and an external SAS cable.
2.4.1 Mini SAS HD SFF-8643 to 4xSATA Cable
The Mini SAS HD SFF-8643 to 4xSATA cables are used for connec -
tion between the 12Gb/s SAS RAID controller internal connectors
and connectors on the SAS/SATA disk drives or SAS/SATA con-
nector backplane. The 12Gb/s SAS controllers have 1-6 Mini SAS
HD SFF-8643 internal connectors, each of them can support up to
four SAS/SATA drives.
These controllers can be installed in a server RAID enclosure
with standard SATA connectors backplane. The following diagram
shows the picture of Mini SAS HD SFF-8643 to 4xSATA cables.
Backplane with SGPIO header can leverage the SGPIO function on
the 12Gb/s SAS RAID controller through the sideband cable.
The SFF-8448 sideband signals cable is reserved for the back -
plane with header on it.