Your search for "cbs250-48pp" revealed the following:
NEW Cisco CBS250-48PP-4G-NA Business 250 Smart 48x 1GB PoE+ RJ-45 4x SFP Switch
SKU: NSN-0301
Condition: New
Shipping: Overnight Options
Warranty: 365 days
Cisco CBS250-48PP-4G-NA Business 250 Smart 48x 1GB PoE+ RJ45 4x 1GB SFP Switch
SKU: NSB-7372
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days