Dell MHDJ7 S4820T is a 48-port 10GBase-T managed switch with 4 additional QSFP+ ports, delivering 10 Gbps per port across the copper RJ45 interfaces and up to 40 Gbps per QSFP+ port for high-speed uplinks or direct server connections. Form factor is 1U rackmount with dual power supplies for redundancy and included mounting rails for standard 19" racks. The switch supports Layer 2 switching protocols and is compatible with Dell PowerEdge server environments and mixed third-party equipment in enterprise data center deployments. Typical applications include core or aggregation layer switching, virtualized environments, storage area networks, and high-bandwidth departmental clusters. This unit is refurbished, tested and guaranteed. Available via quote from G5 Network Group.