Please note that that is not a 'raid' controller, but a HBA for JBOD mode only drive devices
https://www.cisco.com/c/dam/en/us/products/collateral/servers-unified-computing/ucs-c-series-rack-servers/c240m4-sff-spec-sheet.pdf
SAS HBA for External JBOD Attach
Two SFF8644 mini-SAS HD connectors on this card are accessible at the rear of the chassis.
UCSC-SAS9300-8E Cisco 12G 9300-8e 12G SAS HBA for external JBOD attach
Supports external JBOD using x8 wide SAS ports
NOTE: For Cisco 9300-8e 12G SAS HBA external drive enclosure
support, see the enclosure section of the compatibility list at the
following link: https://www.broadcom.com/support/interop-compatibility
Customers should contact their storage vendor for technical support
related to external JBOD enclosures.
Kirk...
