| Slot | Adapter |
|---|---|
| PCIe3 Low-profile Slots | |
| Slot 1 | First Ethernet adapter or not used |
| Slot 2 | Third Ethernet adapter or not used |
| Slot 3 | Second Ethernet adapter or not used |
| PCIe3 Full-height Slots | |
| Slot 4 | Ethernet adapter (quad 1 Gb or dual 10 Gb) for connection to processing node |
| Slot 5 | First FICON or ESCON adapter |
| Slot 6 | Second FICON or ESCON adapter or not used |
| Slot 7 | Third FICON or ESCON adapter or not used |