Your search for "qsfp28" revealed the following:
Dell S4112F-ON EMC S-Series 12x 10GB SFP+ 3x 100GB QSFP28 F-B Air No OS10 Switch
SKU: NSB-9782
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 587.99
• Only 2 remaining
Call if you need more
NEW Juniper QFX5120-32C-AFO 32x 100GB QSFP28 F-B Airflow Switch
SKU: NSN-3710
Condition: New
Shipping: Overnight Options
Warranty: 365 days
$ 11,494.99
• Only 1 remaining
Call if you need more
NEW Juniper JNP-100G-AOC-1M 1m 100GB QSFP28 Active Optical Cable
SKU: NSN-4700
Condition: New
Shipping: Overnight Options
Warranty: 365 days
$ 1,527.99
• Only 2 remaining
Call if you need more
Cisco N9K-C92304QC 56x 40GB QSFP+ 8x 100GB QSFP28 Back-to-Front Airflow Switch
SKU: NSH-9017
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 2,082.99
• Only 2 remaining
Call if you need more
Cisco N9K-C9332C Nexus 9000 32x 100GB QSFP28 2x 10GB SFP+ F-B Airflow Switch
SKU: NSB-7780
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 2,125.99
• Only 2 remaining
Call if you need more
Cisco N9K-C9364C Nexus 9000 64x 100GB QSFP28 2x 10GB SFP+ B-F Air Switch
SKU: NSB-3807
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 3,162.99
• Only 2 remaining
Call if you need more
NEW Juniper QFX5210-64C-AFI 64x 100GB QSFP28 B-F Airflow Switch
SKU: NSN-3635
Condition: New
Shipping: Overnight Options
Warranty: 365 days
$ 5,635.99
• Only 2 remaining
Call if you need more
Dell S4112T-ON-RA 12x 10GB Copper 3x 100GB QSFP28 B-F Air AC OS10 Switch
SKU: NSB-9778
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 4,157.99
• Only 2 remaining
Call if you need more
NEW HPE R0P79A SN2700M 32x 100GB QSFP28 ONIE Front-to-Back Airflow Switch
SKU: NSN-2531
Condition: New
Shipping: Overnight Options
Warranty: 365 days
$ 4,824.99
• 5 in stock
Call if you need more
Cisco N9K-C92348GC-X 48x 1GB RJ45 4x 25GB SFP28 2x 100GB QSFP28 F-B Air Switch
SKU: NSB-8039
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 484.99
• Only 2 remaining
Call if you need more