Your search for "7520-48YE-8CE" revealed the following:

Extreme 7520-48YE-8CE-AC-F 48x 25GB SFP28 8x 100GB QSFP28 F-B Air MACsec Switch

SKU: NSB-9982
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days