Dell S4112F-ON high-speed network switch (part number 086KK) provides 12 ports of 10GBase-X SFP+ connectivity and 3 ports of 100GBase-X QSFP28 for mixed-speed data center and enterprise networking. Supports up to 1.28 Tbps aggregate throughput. 1RU form factor designed for standard 19-inch rack mounting. Compatible with Dell Force10 OS or OpenSwitch environments, enabling flexible deployment in heterogeneous network infrastructures. Typical applications include core/aggregation layer switching, high-performance computing clusters, virtualized environments, and storage area networks requiring multi-speed port configurations. Non-blocking fabric architecture supports full-duplex communication across all ports simultaneously. This refurbished unit has been tested and guaranteed fully operational. Available via quote from G5 Network Group.