Your search for "N3K-C31108" revealed the following:
Cisco N3K-C31108PC-V 48x 10GB SFP+ 6x 100GB QSFP28 Front-to-Back Airflow Switch
SKU: NSB-6943
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 344.99
• 30 in stock
Call if you need more
Cisco N3K-C31108TC-V 48x 10GB Copper 6x 100GB QSFP28 Front-to-Back Air Switch
SKU: NSB-6962
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 845.99
• 9 in stock
Call if you need more
NEW Cisco N3K-C31108PC-V 48x 10GB SFP+ 6x 100GB QSFP28 Back-to-Front Air Switch
SKU: NSN-7658
Condition: New
Shipping: Overnight Options
Warranty: 365 days
$ 562.99
• 13 in stock
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NEW Cisco N3K-C31108PC-V 48x 10GB SFP+ 6x 100GB QSFP28 Front-to-Back Air Switch
SKU: NSN-8195
Condition: New
Shipping: Overnight Options
Warranty: 365 days
$ 629.99
• 13 in stock
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Cisco N3K-C31108TC-V 48x 10GB Copper 6x 100GB QSFP28 Back-to-Front Air Switch
SKU: NSH-7701
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 845.99
• 9 in stock
Call if you need more
NEW Cisco N3K-C31108TC-V 48x 10GB Copper 6x 100GB QSFP28 F-B Airflow Switch
SKU: NSN-8212
Condition: New
Shipping: Overnight Options
Warranty: 365 days
$ 1,102.99
• 5 in stock
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Cisco N3K-C31108PC-V 48x 10GB SFP+ 6x 100GB QSFP28 Back-to-Front Airflow Switch
SKU: NSH-8364
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 344.99
• 30 in stock
Call if you need more
NEW Cisco N3K-C31108TC-V 48x 10GB Copper 6x 100GB QSFP28 B-F Airflow Switch
SKU: NSN-3862
Condition: New
Shipping: Overnight Options
Warranty: 365 days
$ 1,102.99
• 5 in stock
Call if you need more