| 
 Drives 
 | 
| SCSI hard drives | 
support for up to fourteen 1-inch-by-3.5-inch LVD Ultra 160 and Ultra 320 hot-plug hard drives, at speeds of 10K or 15K rpm. | 
| 
 Bus 
 | 
| Configurations | 
support for any of the following:
- one 14-device SCSI bus (joined-bus mode)
 
- one clustered 13-device SCSI bus (cluster mode)
 
- two independent 7-device SCSI buses (split-bus mode)
 
 
 | 
| 
 Back-Panel Connectors 
 | 
| SCSI connector | 
68-pin shielded P-type SCSI for connection to host | 
| 
 Backplane Board Connectors 
 | 
| Hard drives | 
fourteen 80-pin SCA-2 connectors | 
| Power supply/cooling module | 
2 high-current connectors | 
| Enclosure management modules (EMM) | 
210-pin connector | 
| Split-bus module | 
180-pin connector | 
| 
 Enclosure Modules 
 | 
| EMM | 
2 warm-pluggable modules | 
| Split-bus module | 
1 warm-pluggable module with an external slide switch to change between split-bus, joined-bus, and cluster modes | 
| SCSI terminator card | 
1 warm-pluggable module to the terminate SCSI bus in nonredundant EMM configurations | 
| 
 LED Indicators 
 | 
| Front panel | 
5 LED status indicators for power, fault, split bus, cluster mode, and over-temperature | 
| Hard-drive carrier | 
1 single-color activity LED and 1 two-color LED status indicator per drive | 
| EMM | 
3 LED status indicators for power, fault, and active status | 
| Split-bus module | 
1 LED indicator for power | 
| Power supply and cooling module | 
3 LED status indicators for power supply status, power supply fault, and AC status and 2 for cooling module fault | 
| 
 Power Supplies 
 | 
| Wattage | 
600 W | 
| Heat dissipation | 
200 W | 
| Voltage | 
100-240 V rated (actual 85-264 V) | 
| Frequency | 
50-60 Hz | 
| Amperage | 
9.4 A at 100 V, 4.6 A at 200 V | 
| 
 Physical 
 | 
| Height | 
13.26 cm (5.22 inches) | 
| Width | 
44.58 cm (17.55 inches) | 
| Depth | 
50.8 cm (20 inches) | 
| Weight
 PowerVault 220S 
PowerVault 221S 
 | 
 
 32.4 kg (71.5 lb.) maximum redundant configuration with all hard drives installed 
42.2 kg (93.0 lb.) maximum redundant configuration with all hard drives installed  | 
| 
 Environmental 
 | 
| Temperature:
 Operating 
Storage 
 | 
 
 10° to 35°C (50° to 95°F) 
-40° to 65°C (-40° to 149°F)  | 
| Relative humidity
 Operating 
Storage 
 | 
 
 8% to 80% (noncondensing) 
8% to 95% (noncondensing)  | 
| Altitude
 Operating 
 | 
 
 -16 to 3048 m (-50 to 10,000 ft)  | 
| BTU per hour | 
2750 | 
| 
 Available Hard-Drive Power (Per Slot) 
 | 
| Supported hard-drive power consumption | 
up to 1.3 A at +12V 
up to 1.5 A at +5V | 
 
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