ThinkSystem SR650/SR630/SR550 -48 V DC Power Supply
This document provides the important information about ThinkSystem SR650/SR630/SR550 -48 V DC 
Power Supply. Store the documentation for future reference.
Notes: 
•  This type of power supply is only powered by -48 V DC. 
•  This type of power supply can only be used on the SR650/SR630/SR550 servers.
•  Before installing the power supply, user should confirm the technical feasibility with Lenovo.
The option kit includes the following part: 
Figure 1. ThinkSystem SR650/SR630/SR550 -48 V DC Power Supply
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