Your search for "ex3400-24p" revealed the following:
Juniper EX3400-24P 24x 1GB PoE+ RJ45 4x 10GB SFP+ 2x 40GB QSFP+ F-B Air Switch
SKU: NSH-8674
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 263.99
• 7 in stock
Call if you need more
NEW Juniper EX3400-24P 24x 1GB PoE+ RJ45 4x 10GB SFP+ 2x QSFP+ F-B Air Switch
SKU: NSN-4028
Condition: New
Shipping: Overnight Options
Warranty: 365 days
$ 531.99
• 7 in stock
Call if you need more
Juniper EX3400-24P-TAA 24x 1GB PoE+ RJ45 4x 10GB SFP+ 2x QSFP+ (TAA) Switch
SKU: NSH-8675
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days