Product : Dell EMC, PowerFlex [SDS]/3.5, Enterprise
Feature : Flash Capacity, Flash, Storage Support
Content Owner:  Herman Rutten
0 - 64 devices per node
Flash devices are not mandatory in a PowerFlex solution.

PowerFlex supports a maximum of 64 devices (disks) per SDS server. This includes both HDD and Flash devices. In VMware vSphere environments the maximum is 59 devices (disks) per SDS server.