Your search for "Juniper QSFP-40G" revealed the following:
QLogic CBL1-0400626 6m QSFP to Cx4 Transceiver Twinax 40G Direct Attach Cable
SKU: NSB-2504
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
NEW Juniper QFX5120-48Y-AFO 48x 25GB SFP+ 8x 100GB QSFP28 F-B Air Switch
SKU: NSN-3627
Condition: New
Shipping: Overnight Options
Warranty: 365 days
Juniper MIC-3D-40GE-TX MX Series 40x 1GB RJ45 Router Module
SKU: NSH-7358
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
NEW Juniper QFX5200-48Y-DC-AFO 48x 25GB SFP28 6x 100GB QSFP28 F-B Air DC Switch
SKU: NSN-3634
Condition: New
Shipping: Overnight Options
Warranty: 365 days
Juniper ACX6160-T-DC 8x 100GB QSFP28 4x 200GB CFP2- DCO F-B Air (DC) Router
SKU: NSB-5313
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
NEW Juniper QFX5110-48S-AFI 48x 10GB SFP+ 4x 100GB QSFP28 B-F Airflow Switch
SKU: NSN-3749
Condition: New
Shipping: Overnight Options
Warranty: 365 days
Juniper QFX5210-64C-DC-AFO 64x 100GB QSFP28 F-B Airflow (DC) Switch
SKU: NSH-8263
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
NEW Juniper EX9200-40T-MIC 40x 1GB RJ45 (MACsec) Switch Module
SKU: NSN-3888
Condition: New
Shipping: Overnight Options
Warranty: 365 days
Juniper QFX5110-48S-DC-AFO 48x 10GB SFP+ 4x 100GB QSFP28 F-B Air (DC) Switch
SKU: NSH-8243
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
Juniper QFX5120-48Y-DC-AFO 48x 25GB SFP28 8x 100GB QSFP28 F-B Air (DC) Switch
SKU: NSH-8251
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days