Your search for "5420M-24T" revealed the following:

Extreme 5420M-24T-4YE 5420 Series 24x 1GB RJ45 4x 25GB SFP28 Switch

SKU: NSB-2938
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days

NEW Extreme 5420M-24T-4YE 5420 Series 24x 1GB RJ45 4x 25GB SFP28 Switch

SKU: NSN-8579
Condition: New
Shipping: Overnight Options
Warranty: 365 days