Your search for "juniper qsfp-40g" revealed the following:
Juniper MPC5E-40G10G-IRB MX2000 Series 6x 40GB QSFP+ 24x 10GB SFP+ Line Card
SKU: NSH-8689
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
NEW Juniper EX3400-48T-TAA 48x 1GB RJ45 4x 1GB SFP+ 2x 40GB QSFP+ (TAA) Switch
SKU: NSN-3699
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
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
NEW Juniper QFX10000-60S-6Q 60x 10G SFP+ 6x 40GB QSFP+ 2x 100GB Switch Line Card
SKU: NSN-3733
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 QFX5110-32Q-AFO 32x 40GB QSFP+ Front-to-Back Airflow Switch
SKU: NSH-8245
Condition: Seller refurbished
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
Juniper QFX5110-32Q-DC-AFI 32x 40GB QSFP+ Back-to-Front Airflow (DC) Switch
SKU: NSH-8246
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
NEW Juniper QFX5110-32Q-AFO 32x 40GB QSFP+ Front-to-Back Airflow Switch
SKU: NSN-2375
Condition: New
Shipping: Overnight Options
Warranty: 365 days