PERC H810 does not do RAID 6?

Based on Dell's literature, the PERC H810 should come with both RAID 5 and RAID 6 enabled.  I recently purchased a PERC H810 to use in my T7600 but, when I went to create a RAID 6 virtual drive, MSM says only RAID 5 is enabled.  I have several H710s and H800s and all of them do RAID 6, as expected.  Does the H810 require an additional key (software or hardware)?  Does Dell market different versions of this card in different markets (ignoring the LFF vs full height brackets).

Specifics for the H810:

Firmware Package: 21.2.0-0007

Firmware Version: 3.130.05-2086

Driver: 5.2.220.64 A00

OS: Windows Server 2012

Any help or ideas would be appreciated.  Thank you.