Two 4350/5350-8i RAID adapters
From To
1
Lower backplane power connector Backplane 1 power connector
2
Lower backplane SAS/SATA 1 connector C1
3
Lower backplane SAS/SATA 0 connector C0
4
Upper backplane power connector Backplane 2 power connector
5
Upper backplane SAS/SATA 1 connector C1
6
Upper backplane SAS/SATA 0 connector C0
Four 3.5-inch and eight 2.5-inch hot-swap drives
Use this section to understand the cable routing for server models with four 3.5-inch and eight 2.5-inch hot- 
swap drives.
•  “One 9350-16i RAID adapter” on page 55
•  “Two 4350/5350-8i RAID adapters” on page 56
54
ThinkSystem ST250 V2 Setup Guide