Your search for "n3k-c3064" revealed the following:
NEW Cisco N3K-C3064PQ-10GE 48x 10GB SFP+ 4x 40GB QSFP+ Front-to-Back Air Switch
SKU: NSN-5147
Condition: New
Shipping: Overnight Options
Warranty: 365 days
Cisco N3K-C3064TQ-32T 32x 10GB Copper 4x 40GB QSFP+ Front-to-Back Airflow Switch
SKU: NSB-6942
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days