| 1
| System fan connector
|
| 2
| System maintenance switch |
| 3
| Flexible Slot power supply connector
|
| 4
| 4-pin power connector
|
| 5
| Heatsink fan connector
|
| 6
| 24-pin power connector
|
| 7
| M.2 SSD slot
|
| 8
| Internal USB 3.0 connector
|
| 9
| Front I/O connector
|
| 10
| x1 SATA port 1
|
| 11
| x1 SATA port 2
|
| 12
| Drive backplane sideband connector
|
| 13
| PCI fan connector
|
| 14
| x1 SATA port 3
|
| 15
| x1 SATA port 4
|
| 16
| x1 SATA port 5
|
| 17
| x1 SATA port 6
|
| 18
| Front USB connector
|
| 19
| Controller backup power connectors
|
| 20
| Energy pack connector
|
| 21
| TPM connector
|
| 22
| System battery
|
| 23
| Slot 4 PCI3 x8 (4, 1), half-length1 |
| 24
| Slot 3 PCI3 x16 (4, 1), full-length1 |
| 25
| Slot 2 PCI3 x8 (4, 1), half-length1 |
| 26
| Slot 1 PCI3 x16 (16, 8, 4, 1), full-length1 |
