Your search for "QFX JPSU" revealed the following:
Juniper JPSU-850W-DC-AFI QFX5100 Series 850W DC B-F Airflow Power Supply
SKU: NSB-0157
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
Juniper JPSU-850W-AC-AFI 850W AC B-F PSU for QFX5100, QFX5120, QFX5200, ACX
SKU: NSB-0448
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
Juniper JPSU-850W-DC-AFO QFX5100 Series 850W DC F-B Airflow Power Supply
SKU: NSB-0156
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
NEW Juniper JPSU-850W-AC-AFO QFX5100 Series 850W AC F-B Airflow Power Supply
SKU: NSN-0271
Condition: New
Shipping: Overnight Options
Warranty: 365 days
NEW Juniper JPSU-850W-DC-AFI QFX5100 Series 850W DC B-F Airflow Power Supply
SKU: NSN-0278
Condition: New
Shipping: Overnight Options
Warranty: 365 days
NEW Juniper JPSU-650W-AC-AFI QFX5100 Series 650W AC B-F Air Switch Power Supply
SKU: NSN-0259
Condition: New
Shipping: Overnight Options
Warranty: 365 days
NEW Juniper JPSU-1600W-AC-AFO 1600W AC F-B PSU for QFX10002, QFX5220, PTX1000
SKU: NSN-4148
Condition: New
Shipping: Overnight Options
Warranty: 365 days
Juniper JPSU-650W-DC-AFO QFX5120 Series 650W DC F-B Airflow Power Supply
SKU: NSB-0456
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
NEW Juniper JPSU-650W-AC-AFI 650W AC B-F PSU for EX4600 QFX5100 QFX5110 QFX5120
SKU: NSN-1367
Condition: New
Shipping: Overnight Options
Warranty: 365 days
NEW Juniper JPSU-650W-DC-AFO 650W DC PSU EX4600 EX4650 QFX5100 QFX5110 QFX5120
SKU: NSN-0266
Condition: New
Shipping: Overnight Options
Warranty: 365 days