Your search for "juniper qsfp-40g" revealed the following:

NEW Juniper QFX5100-48S-AFO 48x 10GB SFP+ 6x 40GB QSFP+ Front-to-Back Air Switch

SKU: NSN-1678
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 QFX5100-48T-DC-AFO 48x MultiGB RJ45 6x 40GB QSFP+ F-B Air (DC) Switch

SKU: NSH-8211
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days

NEW Juniper EX-UM-2QSFP-MR EX4300 Series 2x 40GB QSFP+ Switch Module

SKU: NSN-4692
Condition: New
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 QFX5100-48T-AFI 48x 10GB Copper 6x 40GB QSFP+ B-F Air Switch

SKU: NSN-1866
Condition: New
Shipping: Overnight Options
Warranty: 365 days

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

SKU: NSN-3777
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

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

SKU: NSH-8234
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days

NEW Juniper EX4300-48P-AFI 48x 1GB PoE+ RJ-45 4x 40GB QSFP+ B-F Airflow Switch

SKU: NSN-0621
Condition: New
Shipping: Overnight Options
Warranty: 365 days