Your search for "MX64" revealed the following:
NEW Cisco Meraki MA-PWR-90WAC 90W AC Power Adapter for MS120-8LP MX65
SKU: NSN-6215
Condition: New
Shipping: Overnight Options
Warranty: 365 days
Juniper RE-S-X6-64G-R MX Series (Redundant RE) Routing Engine
SKU: NSB-5775
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days