50  IBM System Storage N series Hardware Guide
7. IOM B and power supplies three and four
8. Four power supplies (each with integrated fans)
9. Power supply LEDs
Figure 5-6   EXN3200 rear view
5.3.2  Supported EXN3000 drives 
Table 5-3 lists the drives that are supported by EXN3200 at the time of this writing.
Table 5-3   EXN3000 supported drives
5.3.3  Environmental and technical specifications
Table 5-4 shows the environmental and technical specifications
Table 5-4   EXN3000 environmental and technical specifications
EXN3000 RPM Capacity
SATA 7.2 K 3 TB
7.2 K 4 TB
Input voltage 100 to 240 V (100 V actual  200 to 240 V (200 V actual)
Size Worst 
case,
2 PSU
a
Typical Worst 
case,
2 PSU
Typical
Per PSU 
pair
b
System, 
four PSU
c
Per PSU 
pair
System, 
four PSU
Total input current 
measured, A
3 TB 8.71 3.29 6.57 4.59 1.73 3.46
4 TB 8.54 3.40 6.79 4.25 1.69 3.38
Total input power 
measured, W
3 TB 870 329 657 919 346 693
4 TB 853 339 677 837 329 657