https://www.intel.com/content/www/us/en/content-details/810753/intel-r-raid-smart-battery-axxrsbbu3-pcn-109374-00-product-design-remove-27-inch-battery-connection-cable.html
Intel(R) RAID Smart Battery AXXRSBBU3, PCN 109374-00, Product Design, Remove 27-inch Battery...
Intel(R) Server RAID Controllers, Product Design, Intel anticipates no impact to customers, see PCN detail for further information.