In Stock

Quick Specifications

400 Gbps Capacity
Compact 1U
Ultra-high 10GbE/100GbE port density
Power efficiency

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SOLUTION: Broadband Network Gateways

Expand fiber access and grow services revenue for your wireline business.


SOLUTION: Provider Edge

Advanced edge technologies that help service providers simplify, streamline, and accelerate.


SOLUTION: Data Center Networks

Get more competitive with an agile data center foundation.



Try out the MX free in our virtual lab environment.


High-Density and Throughput

400 Gbps of system throughput and support for up to 24 10GbE, 4 40GbE, or 4 100GbE interfaces per chassis.

Compact Design

Full-featured edge router that offers ultra-high density and throughput in a compact 1 U form factor.

Power and Cooling

Excellent power efficiency, consuming just 0.9 W/Gb—a critical consideration for cloud-grade and collocation networks. The MX204 offers redundant power supplies and fan, and is NEBS-compliant.


The SDN-ready MX204 Universal Routing Platform is a cloud-grade routing platform that offers you ultra-high density and throughput in a space- and power-optimized package. The MX204 addresses the emerging edge and metro Ethernet networking needs of service providers, mobile, web-scale operators, and MSOs by delivering 400 Gbps of throughput in support of high-density 10GbE, 40GbE, and 100GbE interfaces—all in just one rack unit.

Powered by Junos OS and the programmable Trio chipset, the MX204 supports a comprehensive suite of routing, switching, security, and service features that are available in large MX Series platforms, including support for automation and telemetry capabilities that serve as the foundation for the future Self-Driving Network™. Additionally, the MX204 supports the stringent timing and synchronization requirements of mobile and financial services.


System capacity 400 Gbps
Switch fabric capacity per slot N/A
DPCs and/or MPCs per chassis Built-in
Chassis per rack 42
Dimensions (W x H x D) 17.6 x 1.75 x 18.7 in (44.7 x 4.45 x 47.5 cm)
Maximum weight 23.15 lbs / 10.5 kg
Mounting Four-post rack
Power options 100 V to 240 V AC
-40 V to -72 V DC
Operating temperature 32° to 131° F (0° to 55° C)
Humidity 5 % to 90% RH, operating, noncondensing
Altitude 6000 ft