Your search for "DS-X97-SF1-K9" revealed the following:
NEW Cisco DS-X97-SF1-K9 MDS 9706 Series SAN Switch Supervisor 1 Module
SKU: NSN-1263
Condition: New
Shipping: Overnight Options
Warranty: 365 days
$ 1,762.99
• Only 1 remaining
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Cisco DS-X97-SF1-K9 MDS 9706 Series SAN Switch Supervisor 1 Module
SKU: NSB-8847
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 57.99
• Only 2 remaining
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Cisco DS-X97-SF1E-K9 MDS 9700 Series SAN Switch Supervisor-1E Module
SKU: NSB-8855
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 1,311.99
• 8 in stock
Call if you need more