BIOS 2.13.0 is released recently on 26th April. Dell Catalog update will happen in regular interval and based on release data catalog may carry latest or N-1 FW. Next catalog update will have latest BIOS FW for T330.  For HBA330 latest FW supported for T330 is 13.17.03.05. That is the reason downloads.dell.com is showing that as latest version. 16.17.01.00 is not supported on T330 [URL] 
Hello, I got a T330, all firmware was 5 years old, upgraded everything to latest in steps... Upgraded BIOS manually downloading from dell.com/support then file upload through idrac8 BIOS 2.13.0 but now when running updates from Idrac8 or lifecycle controller it reports the latest bios is BIOS 2.12.0 ? also Dell HBA330 is 16.17.01.00.   idrac or lifecycle suggest to downgrade to13.17.03.05   SAS-Non-RAID_Firmware_847VG_WN64_13.17.03.05_A03_03.EXE Recommended AvailableComponents Current AvailableDell HBA330 Adp 16.17.01.00 13.17.03.05 BIOS_J0HV6_WN64_2.12.0.EXE Urgent AvailableComponents Current AvailableBIOS 2.13.0 2.12.0 Diagnostics_Application_NNPW9_WN64_4239A36_4239.44.EXE Optional Available Drivers-for-OS-Deployment_Application_WP3PH_WN64_18.12.04_A00_01.EXE Optional Available   Thanks, Andras  
firmware version different on downloads.dell.com and dell.com/support