Lenovo ThinkStation P920 Manual page 7

How to Utilize the Onboard Intel SATA Controller
In the P720 system, SATA drives are connected to the onboard Intel SATA controller via
a manual plug method. This consists of manually cabling both power and data to each
drive individually. The P720 system can support up to 4 drives using the onboard Intel
SATA controller.
HDD/SSD Manual Connect Option
Power Cable
2-drop
Data Cable
Power Cable
4-drop
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