Your search for "EX3400 TAA" revealed the following:

NEW Juniper EX3400-48T 48x 1GB RJ45 4x 1GB SFP+ 2x 40GB QSFP+ F-B Air Switch

SKU: NSN-3978
Condition: New
Shipping: Overnight Options
Warranty: 365 days

NEW Juniper JPSU-150-DC-AFO EX3400 Series 150W DC Switch Power Supply

SKU: NSN-1334
Condition: New
Shipping: Overnight Options
Warranty: 365 days

NEW Juniper JPSU-150-AC-AFO 150W AC F-B Switch Power Supply for EX3400, EX4100

SKU: NSN-5575
Condition: New
Shipping: Overnight Options
Warranty: 365 days