| Part Number | Manufacturer | Description | Notes | |
|---|---|---|---|---|
| 672043-B21 | HPE | HP Smart Array FBWC 512Mb Module for P721m/P731m | Purchase Online | |
| OPTION 1 P/N | ||||
| 694033-B21 | HPE | HP Smart Array FBWC 512Mb Upgrade for BL660c FIO Kit - Includes Capacitor | Purchase Online | |
| SPARE 1 P/N | ||||
| 673609-001 | HPE | HP Smart Array FBWC 512Mb Module for P721m/P731m | Spare part number | Purchase Online |
| OTHER P/N's | ||||
| 672041-001 | HPE | HP Smart Array FBWC 512Mb Module for P721m/P731m | Assembly part number | Purchase Online |
| 672043-B21 | HPE | HP Smart Array FBWC 512Mb Module for P721m/P731m | Purchase Online |