Your search for "cbs350-16t" revealed the following:

Cisco CBS350-16T-2G-NA Business 350 16x 1GB RJ45 2x 1GB SFP Switch

SKU: NSB-7796
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days

Cisco CBS350-16T-E-2G-NA Business 350 16x 1GB RJ45 2x 1GBSFP Switch

SKU: NSB-7798
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days