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

NEW Juniper QFX5100-24Q-AA-AFI 24x 40GB QSFP+ 1x DW Slot B-F Airflow Switch

SKU: NSN-3775
Condition: New
Shipping: Overnight Options
Warranty: 365 days

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

SKU: NSN-3903
Condition: New
Shipping: Overnight Options
Warranty: 365 days

NEW Juniper QFX5100-96S-AFI 96x 10GB SFP+ 8x 40GB QSFP+ Back-to-Front Air Switch

SKU: NSN-3818
Condition: New
Shipping: Overnight Options
Warranty: 365 days

Juniper EX3400-48T-TAA 48x 1GB RJ45 4x 1GB SFP+ 2x 40GB QSFP+ (TAA) Switch

SKU: NSH-8745
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days

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

SKU: NSN-3779
Condition: New
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 MPC7E-MRATE MX Series 12x 40GB QSFP+ Router Line Card

SKU: NSN-9731
Condition: New
Shipping: Overnight Options
Warranty: 365 days

NEW Juniper EX3400-24T 24x 1GB RJ-45 4x 10GB SFP+ 2x 40GB QSFP+ F-B Air Switch

SKU: NSN-2879
Condition: New
Shipping: Overnight Options
Warranty: 365 days