Your search for "juniper mx204" revealed the following:
Juniper JNP-FAN-1RU MX Series Router Fan Tray for MX204
SKU: NSH-7292
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
Juniper RE-MX2000-1800X4-S-A MX2000 Series Routing Engine and Control Board
SKU: NSB-2377
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
NEW Juniper MIC-MRATE MX2000 Series 12x MultiRate QSFP+/28 Router Module
SKU: NSN-3766
Condition: New
Shipping: Overnight Options
Warranty: 365 days
NEW Juniper RE-S-2000-4096-S MX Series 4GB Routing Engine w/ 2.0-GHz Processor
SKU: NSN-1572
Condition: New
Shipping: Overnight Options
Warranty: 365 days
Juniper MX240BASE-AC-HIGH MX Series Router Bundle w/ SCB
SKU: NSB-5457
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
Juniper MX240BASE-AC MX Series 4-Slot MX240 Base Router Chassis
SKU: NSH-3233
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
Juniper RE-S-1800X4-32G-BB MX Series Quad Core 1.8GHz CPU 32GB Base Bundle
SKU: NSB-5794
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
Juniper MX2000-SFB-BB MX Series Switch Fabric Board Router Module
SKU: NSH-6722
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
NEW Juniper MX-MPC2-3D-Q MX2000 Router Line Card Bundle
SKU: NSN-2503
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