We no longer carry Cisco UCS 2304 Fabric Extender - expansion module - 40Gb Ethernet / FCoE QS (4010418), but we found this replacement for you.
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The Cisco UCS IOM 2304V2 Expansion Module is an efficient data center platform that unites computing, network, storage access and virtualization resources. The system integrates a low-latency and lossless 40 GB Ethernet unified network fabric with an enterprise-class architecture server.