Your search for "16803" revealed the following:

NEW Extreme 16803 Industrial Ethernet 4x 1GB PoE+ RJ45 2x 1GB SFP Switch

SKU: NSN-4697
Condition: New
Shipping: Overnight Options
Warranty: 365 days

Extreme 16803 Industrial Ethernet 4x 1GB PoE+ RJ45 2x 1GB SFP Switch

SKU: NSH-9441
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days