Your search for "CBS350-24XT" revealed the following:

Cisco CBS350-24XT-NA Business 350 Series 24x 10GB Copper 4x 10GB SFP+ Switch

SKU: NSB-7822
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days

Cisco CBS350-24XTS-NA Business 350 Series 12x 10GB Copper 12x 10GB SFP+ Switch

SKU: NSB-7821
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days