System board components
| Item | Description |
|---|---|
| 1 | PCIe3 x16 slot 1 for low-profile, standup expansion board or riser cage options1 (HPE Universal SATA) |
| 2 | microSD card slot |
| 3 | PCIe3 x24 slot 2 for low-profile, standup expansion board, riser cage option, or NVMe pass-through board1 |
| 4 | TPM 2.0 connector |
| 5 | Flexible Smart Array Controller slot (P816i-a SR) |
| 6 | PCIe3 x8 slot 5 for low-profile, standup expansion board2 |
| 7 | System maintenance switch |
| 8 | PCIe3 x24 slot 6 for low-profile, standup expansion board, riser cage options, or NVMe pass-through board2 |
| 9 | PCIe3 x16 slot 7 for low-profile, standup expansion board or riser cage options2 |
| 10 | Controller backup power connectors for expansion slots 3-7 |
| 11 | Front LED connector |
| 12 | Processor 2 DIMM slots |
| 13 | System battery |
| 14 | Processor 1 DIMM slots |
| 15 | Fan signal connector |
| 16 | Energy pack connector |
| 17 | Fan power connector |
| 18 | Internal drive cage backplane power connector |
| 19 | Controller backup power connectors for expansion slots 1-2 |
| 20 | Front drive cage backplane power connector |
| 21 | Power supply backplane connector |
| 22 | Rear drive cage backplane power connector |
| 23 | Rear 6SFF NVMe drive cage fan connector |
| 24 | Mini SAS connector 1 |
| 25 | SATA connector 2 |
| 26 | SATA connector 1 |
| 27 | Internal USB 3.0 port |
| 28 | Front USB 2.0 port |