Your search for "CBS250-24T" revealed the following:
Cisco CBS250-24T-4G-NA Business 250 Smart Series 24x 1GB RJ45 4x 1GB SFP Switch
SKU: NSB-7367
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
NEW Cisco CBS250-24T-4X-NA Business 250 Smart 24x 1GB RJ-45 4x 10GB SFP+ Switch
SKU: NSN-0425
Condition: New
Shipping: Overnight Options
Warranty: 365 days
Cisco CBS250-24T-4X-NA Business 250 Smart 24x 1GB RJ-45 4x 10GB SFP+ Switch
SKU: NSB-7374
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days