CE12804SA-BB is CE12804S Bundle B (Assembly Chassis, 2*MPUA-S, 2*SFUC-S, 2*PHD-3000WA, 2*CE-L24LQ-EC1, OS). Quick Specs Figure 1 shows the appearance of
CE12804SD-B1 is CE12804S DC Bundle1 (DC Assembly Chassis, 2*MPUA-S, 2*SFUB-S, 2*PDC-2200WA). Quick Specs Figure 1 shows the appearance of CE12804SD-B1.
CE12804SD-B2 is CE12804S DC Bundle2 (DC Assembly Chassis, 2*MPUA-S, 2*SFUC-S, 2*PDC-2200WA). Quick Specs Figure 1 shows the appearance of CE12804SD-B2.