Your search for "dell n4064" revealed the following:
Dell QSFP-40G-LM4 C41MF 40GB Base-LX4 MMF 1330nm 150m LC QSFP+ Transceiver
SKU: NSB-4099
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 239.99
• Only 2 remaining
Call if you need more
Dell N1124T-ON N1100 Series 24x 1GB RJ45 4x 10GB SFP+ EMC Switch
SKU: NSB-0579
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 244.99
• 5 in stock
Call if you need more
NEW Dell QSFP-40G-SM4 77KC3 40GB BASE-SR4 850nm MMF QSFP+ Transceiver
SKU: NSN-0837
Condition: New
Shipping: Overnight Options
Warranty: 365 days
$ 68.99
• Only 2 remaining
Call if you need more
Dell 7TCDN QSFP-40G-SR4 40GB BASE-SR4 850nm QSFP+ Transceiver
SKU: NSB-4043
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 29.99
• Only 2 remaining
Call if you need more
Dell S4820T-RA 48x 10GB Copper 4x 40GB QSFP+ Back-to-Front Airflow Switch
SKU: NSB-6549
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 798.99
• 18 in stock
Call if you need more
Dell Z9100-ON-RA EMC Z-Series 32x 100GB QSFP28 B-F (No OS10 License) Switch
SKU: NSB-9748
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 428.99
• Only 2 remaining
Call if you need more
Dell Z9100-ON-RA EMC Z-Series 32x 100GB QSFP28 Back-Front Airflow OS10 Switch
SKU: NSB-7050
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 1,595.99
• 5 in stock
Call if you need more
Dell 275YF 540-BDID Broadcom 57414 2x 10/25GB SFP28 Low Profile Network Adapter
SKU: NSC-0470
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 215.99
• 5 in stock
Call if you need more
NEW Dell Z9100-ON EMC Z-Series 32x 100GB QSFP28 Front-to-Back Air OS10 Switch
SKU: NSN-2201
Condition: New
Shipping: Overnight Options
Warranty: 365 days
$ 2,291.99
• Only 2 remaining
Call if you need more
NEW for Dell PowerConnect 3000 Series 1U Switches WJ690 NT-3000 Rack Mount Kit
SKU: NSB-4278
Condition: New
Shipping: Overnight Options
Warranty: 365 days
$ 18.99
• 151 in stock
Call if you need more