Hey all,   I'm in the process of moving my server to a new rack chassis and needed some sff-8643 compatible controllers for the backplane. Bought two Dell WFN6R via ebay and this worked for me: https://jc-lan.org/2020/01/09/crossflash-dell-0wfn6r-9341-8i-to-9300-8i-it-mode/   Links corrected - Thanks @wow001 !  https://www.broadcom.com/site-search?q=installer_P16_for_UEFI https://www.broadcom.com/site-search?q=9300_8i_Package_P16_IR_IT_FW_BIOS_for_MSDOS_Windows