Your search for "X690" revealed the following:
Cisco WS-X6908-10G-2T 8x 10GB FC X2 Switch Module w/ DFC4
SKU: NSH-2145
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 606.99
• Only 2 remaining
Call if you need more
Cisco WS-X6904-40G-2T Catalyst 6900 4x 40GB Fiber CFP Switch Module w/ DFC4
SKU: NSH-2155
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 429.99
• Only 2 remaining
Call if you need more
Cisco WS-X6904-40G-2TXL 4x 40GB FC CFP Switch Module w/ DFC4XL
SKU: NSH-2146
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 557.99
• Only 1 remaining
Call if you need more
Extreme 17360 X690-48t-2q-4c 48x 10GB Copper 2x 40GB QSFP+ 4x QSFP28 Switch
SKU: NSB-4639
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
NEW Extreme 17350 X690-48x-2q-4c 48x 10GB SFP+ 2x 40GB QSFP+ 4x QSFP28 Switch
SKU: NSN-3825
Condition: New
Shipping: Overnight Options
Warranty: 365 days
Extreme 17350 X690-48x-2q-4c 48x 10GB SFP+ 2x 40GB QSFP+ 4x 100GB QSFP28 Switch
SKU: NSB-4638
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
NEW Extreme 17360 X690-48t-2q-4c 48x 10GE 2x 40G QSFP+ 4x 100G QSFP28 Switch
SKU: NSN-5020
Condition: New
Shipping: Overnight Options
Warranty: 365 days