| Lenovo | 
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|  | Part No: 494506 Manufacturer No. 4P57A26293$345.80
"Hot-Swap 1100W Power Supply suitable for the following ThinkSystem servers: Provides redundancy in the event of a power supply failure.ThinkSystem SR645ThinkSystem SR665
 Important:If installing a 2nd Power Supply for redundanct, both Hot-Swap Power Supplies MUST be identical."
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|  | Part No: 494513 Manufacturer No. 4ZC7A15121$552.80
"TruDDR4 memory uses the highest-quality components sourced from Tier 1 DRAM suppliers and only memory that meets strict requirements is selected.It is compatibility-tested and tuned to maximize performance and reliability.
 TruDDR4 memory has a unique signature programmed into the DIMM, which enables ThinkSystem servers to verify whether the memory installed is qualified and supported.From a service and support standpoint, TruDDR4 memory automatically assumes the system's warranty, and service and support provided worldwide.
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|  | Part No: 494510 Manufacturer No. 4XG7A37997$1,348.40
Part number includes the processor, processor heatsink and an additional system fan. | 
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