I would like to know Enterasys B5G124-48 equivalent model of Summit switchs ?

[Prabhu_M1]

The Enterasys B5G124-48 equivalent model of Summit switches

[Ronald_Dvorak]

The answer is right in the product overview....
https://www.extremenetworks.com/products/switching/campus-switching/

X450-G2, Intelligent, cost-effective edge switching and routing

[Prabhu_M1]

Thanks, Ronald

Is X450-G2-48t-GE4-Base L3 switch?

[Ronald_Dvorak]

X450-G2-48t-GE4-Base