HP Apollo 4200 Gen9 User Manual page 91

11. For the two-bay SFF rear drive cage only – If you intend to install the H240 HBA in the PCIe riser slot 3
or 4, do the following:
a. Remove the PCI riser cage.
b. Remove the riser slot cover.
c. Install the HBA.
d. Install the PCI riser cage.
Hardware options installation 91