The Dell 540-BBUI is a dual-port 10GBase-T network adapter designed for enterprise server environments. Part number 540-BBUI, this full-height card interfaces via PCI Express 3.0 x8 slot and delivers two independent 10 Gigabit Ethernet ports with RJ45 connectivity. Each port supports standard Cat6A cabling and negotiates 10 Gbps, 1 Gbps, or 100 Mbps operation, making it suitable for mixed-speed network deployments. The adapter is compatible with Dell PowerEdge servers and supports standard hypervisors including VMware ESXi, Microsoft Hyper-V, and Linux. Typical applications include high-bandwidth storage area networks (SAN), virtualized environments requiring dual NIC failover, and low-latency data center interconnects.
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