Your search for "QFX10000-30C" revealed the following:
Juniper QFX10000-30C QFX 10000 Series 30x 100GB QSFP28 Switch Line Card
SKU: NSH-9970
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 224.99
• Only 2 remaining
Call if you need more
NEW Juniper QFX10000-30C QFX 10000 30x 100GB QSFP28 Switch Line Card
SKU: NSN-3769
Condition: New
Shipping: Overnight Options
Warranty: 365 days
$ 1,762.99
• Only 2 remaining
Call if you need more
Juniper QFX10000-30C-M QFX 10000 Series 30x 100GB QSFP28 MACsec Switch Line Card
SKU: NSH-9971
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
NEW Juniper QFX10000-30C-M QFX 10000 30x 100GB QSFP28 MACsec Switch Line Card
SKU: NSN-3770
Condition: New
Shipping: Overnight Options
Warranty: 365 days