Dell Networking S4148T-ON - Switch - L3 - Managed - 48 x 10GBase-T + 4 x 100 Gigabit QSFP28 + 2 x 40 Gigabit QSFP+ - front to back airflow - rack-mountable - Dell Smart Value (210-ALSM) for business | Atea eShop
Dell S4128-ON Manuals | ManualsLib
S4100–ON Series S4128F-ON, S4148F-ON, and S4148FE Installation Guide November 2017
Dell Networking S4128F-ON - Switch - L3 - Managed - 28 x 10 Gigabit SF