Cisco Nexus 9500 3000W AC PS, Cold Air In

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Cisco Part Number: N9K-PAC-3000W-B

The Cisco Nexus 9508 supports up to eight hot-swappable, front-panel-accessible power supplies. A fully loaded chassis can operate with two 3000W AC power supplies. N+1 and N+N redundancy modes are supported. The 3000W AC power supply is 80 Plus Platinum rated, providing more than 90 percent efficiency across typical workloads.

The additional four power supply slots are not needed with existing line cards but offer headroom to support higher-bandwidth line cards in the future.

In addition to the high cooling efficiency, the Cisco Nexus 9500 Series also leads with high power efficiency. Its power supplies are certified for the industry highest efficiency standard, 80 Plus Platinum, with 90-94 percent power efficiency across all workloads.
Under the supervisor modules are eight power supply slots capable of supplying 3000 watts of AC power each; however, only two are needed to power a fully populated chassis. An additional two power supplies can be used for redundancy in a 2-plus-1 or 2-plus-2 configuration. The remaining four slots provide power headroom for later migration to support 100 Gbps and another generation of application-specific integrated circuits (ASICs).
Line cards and fabric modules of the Cisco Nexus 9500 Series are designed with minimal number of ASICs, a mix of 28-nanometer Cisco and 40-nanometer Broadcom custom and merchant ASICs, respectively, that reduces the number of heat pockets on a module.

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