Your search for "n3k-c3016" revealed the following:

Cisco N3K-C3016Q-40GE Nexus 3000 16x 40GB QSFP+ Front-to-Back Airflow Switch

SKU: NSB-6933
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days

$ 539.99

$ 576.99

• Only 2 remaining
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Cisco N3K-C3016Q-40GE Nexus 3000 16x 40GB QSFP+ Back-to-Front Airflow Switch

SKU: NSH-4693
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days

$ 441.99

$ 551.99

• Only 2 remaining
Call if you need more

NEW Cisco N3K-C3016Q-40GE Nexus 3000 16x 40GB QSFP+ Back-to-Front Airflow Switch

SKU: NSN-2884
Condition: New
Shipping: Overnight Options
Warranty: 365 days

NEW Cisco N3K-C3016Q-40GE Nexus 3000 16x 40GB QSFP+ Front-to-Back Airflow Switch

SKU: NSN-2524
Condition: New
Shipping: Overnight Options
Warranty: 365 days