Dell EMC PowerEdge R940 Installation And Service Manual page 54

Figure 44. Connectors on the 24 x 2.5 inch drive backplane
1. PCIe connector (BP PCIE B0)
3. PCIe connector (BP PCIE B1)
5. PCIe connector (BP PCIE B2)
7. power connector (BP PWR_A)
9. power connector (BP PWR_B)
Figure 45. Connectors on the expander board
1. SAS connector (BP SAS B0)
3. SAS connector (BP SAS A)
5. SAS connector (BP SAS C)
7. SAS connector (BP SAS B1)
54 Installing and removing system components
2. PCIe connector (BP PCIE A0)
4. PCIe connector (BP PCIE A1)
6. PCIe connector (BP PCIE A2)
8. signal connector (BP SIG)
2. SAS connector (BP SAS A0)
4. SAS connector (BP SAS B)
6. SAS connector (BP SAS A1)