Your search for "vsp4900-48p" revealed the following:

Extreme VSP4900-48P 48x 1GB PoE 4x 10GB SFP+ 2x 25GB SFP28 1x 40GB QSFP+ Switch

SKU: NSB-4649
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days