“Most consumer-grade controllers, particularly high-end ones like the Phison E18 and Phison E26, support up to 32 dies (8 channels with 4 chip enables per channel). In contrast, the DPU616 supports 16 channels with 8 chip enables per channel, allowing up to 256 dies in interleaving.”-theoverclockingpage.com
Source: theoverclockingpage.com