Your search for "C6800-SUP6T" revealed the following:
Cisco C6800-SUP6T Catalyst 6800 Switch Supervisor Engine 6T Module
SKU: NSB-6201
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 521.99
• Only 2 remaining
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Cisco C6800-SUP6T-XL Catalyst 6800 Switch Supervisor Engine 6T XL Module
SKU: NSH-5774
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 1,586.99
• Only 2 remaining
Call if you need more
NEW Cisco C6800-SUP6T Catalyst 6800 Switch Supervisor Engine 6T Module
SKU: NSN-2099
Condition: New
Shipping: Overnight Options
Warranty: 365 days
NEW Cisco C6800-SUP6T-XL Catalyst 6800 Switch Supervisor Engine 6T XL Module
SKU: NSN-2341
Condition: New
Shipping: Overnight Options
Warranty: 365 days