Your search for "Juniper MX204" revealed the following:
NEW Juniper MPC3E-3D-NG-Q MX Series Next-Gen MPC3E Router Module
SKU: NSN-9790
Condition: New
Shipping: Overnight Options
Warranty: 365 days
Juniper MX2000-PSM-AC-S MX2000 Series AC Delta Router Power Supply
SKU: NSH-9576
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
Juniper MIC-3D-40GE-TX MX Series 40x 1GB RJ45 Router Module
SKU: NSH-7358
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
Juniper PC-4OC48-SON-SFP MX Series 4x OC48 Router Module
SKU: NSB-2703
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days