Your search for "Juniper QSFP-40G" revealed the following:

NEW Juniper EX4300-24T EX4300 Series 24x 1GB RJ45 4x 40GB QSFP+ F-B Air Switch

SKU: NSN-2972
Condition: New
Shipping: Overnight Options
Warranty: 365 days

Juniper QFX5100-24Q-DC-AFI 24x 40GB QSFP+ 2x Mod Slots B-F Airflow (DC) Switch

SKU: NSH-8214
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days

NEW Juniper QFX5100-48S-DC-AFO 48x 10GB SFP+ 6x 40GB QSFP+ F-B Air (DC) Switch

SKU: NSN-1570
Condition: New
Shipping: Overnight Options
Warranty: 365 days

NEW Juniper EX4300-48P-TAA 48x 1GB PoE+ RJ-45 4x 40GB QSFP+ F-B Air (TAA) Switch

SKU: NSN-3704
Condition: New
Shipping: Overnight Options
Warranty: 365 days

Juniper QFX5100-24Q-D-3AFO 24x 40GB QSFP+ 2x Mod Slots F-B Air (DC) Switch

SKU: NSH-8235
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days

Juniper EX4300-48T-AFI-TAA 48x 1GB RJ45 4x 40GB QSFP+ B-F Air (TAA) Switch

SKU: NSH-8952
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days

NEW Juniper EX3400-48T 48x 1GB RJ45 4x 1GB SFP+ 2x 40GB QSFP+ F-B Air Switch

SKU: NSN-3978
Condition: New
Shipping: Overnight Options
Warranty: 365 days

NEW Juniper QFX5100-24Q-DC-AFI 24x 40GB QSFP+ 2x Mod Slots B-F Air (DC) Switch

SKU: NSN-3902
Condition: New
Shipping: Overnight Options
Warranty: 365 days

NEW Juniper QFX5100-48S-D-3AFI 48x 10GB SFP+ 6x 40GB QSFP+ B-F Air (DC) Switch

SKU: NSN-3805
Condition: New
Shipping: Overnight Options
Warranty: 365 days

Juniper ACX5048-AC-L2-L3 ACX 5000 48x 10GB SFP+ 6x 40GB QSFP+ Router

SKU: NSH-2117
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days