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The Juniper MX301-M-HW-BASE is the ordering bundle for the MX301-M: the MX301-M-CHAS-BB chassis with 64 GB of DDR4 memory and 400 GB of NVMe storage, plus two power supplies and six fan modules. The MX301-M shares everything else with the MX301: a 1U fixed-configuration Trio 6 router with 1.6 Tbps across four 400GbE QSFP56-DD, six 100GbE QSFP28, and sixteen 1/10/25/50GbE SFP ports, line-rate MACsec on every WAN port, Junos OS, SyncE and PTP timing, and under 500 W typical power draw. Juniper’s hardware guide (published July 2026) describes the MX301 and MX301-M as enhancing the capabilities of the MX204, and positions them as compact, high-performance edge routers for service providers, cloud operators, and enterprises.
The platform runs Junos OS, the same operating system as the MX204 and MX304 rather than Junos OS Evolved, supports Synchronous Ethernet and PTP for frequency and phase synchronization including the G.8275.1 profile, and draws under 500 W typical per Juniper’s data sheet. Power supplies are 850 W units in AC, DC, or HVAC/HVDC versions in 1+1 redundancy, and the six fan modules provide 5+1 redundancy.
The MX301-M is the right choice when the routing and service scale of the deployment does not need the MX301’s 128 GB of memory: metro edge, enterprise WAN aggregation, and access-aggregation roles where the port mix matters more than control-plane headroom. If the router will carry full internet tables in multiple VRFs or a large subscriber or service load, specify the MX301-HW-BASE instead.
The MX204 remains the value choice for 100G-and-below edge roles through its June 30, 2032 end-of-support date, with a last order date of June 15, 2027. The MX301 is the answer when the same site needs 400GbE uplinks, 25/50GbE hand-offs, MACsec, or four times the capacity in the same rack unit. The modular MX304 steps up to 4.8 Tbps across three LMIC slots for high-density aggregation. Our MX204 guide compares all three side by side, and our MX204 end-of-life replacement guide walks through the stay-or-migrate decision.
The MX301 is a current Juniper platform and refurbished availability is limited. Tell us the quantity, memory configuration (MX301 or MX301-M), and power type (AC, DC, or HVAC/HVDC) you need and we will respond within one business day. Every unit we supply is tested on our 9-point process and covered by our 1-year in-house warranty for end users.
The MX301-M-CHAS-BB chassis with 64 GB DRAM, two power supplies, and six fan modules. Optics are separate.
Yes. Like the MX301, all 26 WAN ports support line-rate MACsec.
Yes, Junos OS, the same operating system as the MX204 and MX304.
Memory: 64 GB on the MX301-M versus 128 GB on the MX301. Ports, Trio 6 silicon, 1.6 Tbps throughput, MACsec, and power are the same.
Yes for most MX204 roles; Juniper describes the MX301 and MX301-M as enhancing the MX204’s capabilities. Check that your routing-scale plan fits the 64 GB configuration, otherwise specify the MX301.
