Brand guide
Juniper Hardware Guide: MX, EX, QFX, SRX and ACX
Updated
Juniper makes routers, campus and data center switches, and firewalls, and its part numbers carry more information than they first show. This guide collects what Townsend knows about the Juniper families we list: what each one is for, where Juniper's end-of-life dates stand, and how to read a part number before you order. Dates and specifications come from Juniper's notices and documents, which the articles linked here name.
The shelves below go to the families we have in stock. For a part that is not shown, request a quote and a person checks the warehouse.
Juniper in stock
- All Juniper MX204
- All Juniper MX304
- All Juniper MX Series
- All Juniper MX480
- All Juniper QFX Series
- All Juniper EX Series
- All Juniper SRX Series
- All Juniper ACX Series
- All Juniper MX Line Cards
- All Juniper MX Routing Engines
- All Juniper Switches and Routers
MX204-HW-BASE
MX204-HW-BASE Juniper MX204 router, 8x 10GbE SFP+ and 4x 40/100GbE QSFP28
In stock
MX304-LMIC16-BASE
MX304-LMIC16-BASE Juniper MX304 line card, 16x 40/100/400GbE QSFP-DD
In stock
MPC10E-15C-MRATE
MPC10E-15C-MRATE Juniper line card, 12x 10/25/40/100GbE QSFP28 and 3x 400GbE QSFP56-DD
In stock
QFX5120-48Y-AFI
QFX5120-48Y-AFI Juniper QFX5120 switch, 48x 1/10/25GbE SFP28 and 8x 100GbE QSFP28
In stock
EX4650-48Y-AFO
EX4650-48Y-AFO Juniper EX4650 switch, 48x 1/10/25GbE SFP28 and 8x 100GbE QSFP28
In stock
SRX1500-SYS-JB-AC
SRX1500-SYS-JB-AC Juniper SRX1500 firewall, 12x 1GbE RJ45, 4x 1GbE SFP and 4x 10GbE SFP+
In stock
ACX7100-48L-DC-AO
ACX7100-48L-DC-AO Juniper ACX7100 router, 48x 10/25/50GbE SFP56 and 6x 400GbE QSFP56-DD
In stock
RE-S-2000-4096-WW-S
RE-S-2000-4096-WW-S Juniper, Routing engine with 2000MHz processor and 4GB memory
In stock
Routers: MX and ACX
The MX Series is Juniper's family of universal edge routers. At the compact end sit the fixed 1U MX204 and the modular 2U MX304, compared in Juniper MX204 vs MX304. The MX240, MX480 and MX960 chassis take line cards, routing engines and switch control boards as separate parts, so a listing for one of those parts needs the chassis it fits. The ACX Series covers access and metro routing, including the ACX7100 and the ACX5448.
Shelves: MX204, MX304, MX480, MX line cards, MX routing engines and ACX.
Dates to know:
- MX204 (MX204-HW-BASE): last order June 15, 2027, support to June 30, 2032. See Juniper MX204 End of Life.
- RE-S-1800X4 routing engines: sale ended June 30, 2021 and support ended June 30, 2026. See Juniper MX Routing Engines.
- MX40 and MX80: sale ended June 30, 2021 and support ended June 30, 2026.
Switches: EX and QFX
The EX Series covers campus, access and aggregation switching, from the compact EX2300 and the EX4300 to the EX4600 and the EX4650. The QFX Series is built for data center racks and includes the QFX5100, the QFX5120 and the QFX5200. To choose between two EX models, read Juniper EX4300 vs EX4600.
Dates to know:
- EX2300: sale ended September 30, 2026, support to September 30, 2031. See Juniper EX2300 End of Life.
- EX4300 (24 and 48 port): sale ended March 31, 2024, support to March 31, 2029. The EX4300-48MP follows with a last order date of December 29, 2026. See Juniper EX4300 End of Sale.
- EX4600: last order December 29, 2026, support to December 29, 2031.
- QFX5100 (24Q, 48S, 48T): sale ended July 1, 2022, support to July 1, 2027. The 96S ended sale on December 31, 2022, with support to December 31, 2027. See Juniper QFX5100 End of Support.
Security: SRX
The SRX Series is Juniper's firewall line. The SRX1500, the SRX345, the SRX4600 and the SRX3000 and SRX5000 chassis each have a shelf of their own. Juniper ended sale of the SRX1500 on April 15, 2026, and its support runs to April 15, 2031.
Reading a Juniper part number
The ending on many Juniper switch and router numbers names the airflow. AFO takes air in through the front panel, the side with the ports, and exhausts it at the rear. AFI does the reverse. Every fan and power supply in a chassis must carry the same label. Airflow suffixes explained sets Juniper's letters beside Arista's -F and -R, and the Arista guide covers the Arista side.
A DC in a part number marks a DC-powered build, so confirm the power input on the product page before you order.
After end of sale
An end-of-sale date closes Juniper's order book and does not stop a router or a switch working. What ends is the maker's side: new software fixes, support cases and replacement under a maker contract. Matching hardware keeps one software image, one set of optics and one spares pool, which is why fleets keep buying the part they already run. The same holds for Arista, Brocade and Ruckus and Cisco gear. If you are the one retiring hardware, send us the list.
Juniper articles
Juniper MX204 vs MX304: Which Edge Router to Buy
The MX204 is a fixed 1U router with 400 Gbps; the MX304 is a modular 2U chassis with 4.8 Tbps and 400GbE. Specifications, power, lifecycle and what to check.
Read more →
Juniper MX204 End of Life: Last Order June 15, 2027, Support to 2032
Juniper MX204 (MX204-HW-BASE): end of sale June 15, 2027. Support ends June 30, 2032. The maker dates, what they change, and what we list.
Read more →
How the Juniper MX204 Powers Multi-Cloud Networking
The Juniper MX204 delivers 400 Gbps throughput, high-density 10GbE, 25GbE, and 100GbE ports, and advanced automation for seamless multi-cloud networking.
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Why the Juniper MX304 Is a Game-Changer for Edge Networking
Juniper MX304 Series is a kind of magical machine for networking professionals. It can handle up to 5 Tbps of traffic load with low latency and high bandwidth.
Read more →
Juniper MX Routing Engines: RE-S-1800X4 End of Support and the RE-S-X6
Juniper RE-S-1800X4 routing engines: end of sale June 30, 2021. Support ended June 30, 2026. The maker dates, what they change, and what we list.
Read more →
Future-Proofing Your Network with the Juniper MX Series
Juniper MX Series is a series of flexible, high-density routers intended to meet the various networking requirements of businesses, data centers, and telecom operators. Well known for its scalability, which is the best in the industry, the MX Series enables deployment of the network on a small edge to a large global scale.
Read more →
Juniper EX2300 End of Life: End of Sale September 30, 2026, Support to 2031
Juniper EX2300: end of sale September 30, 2026. Support ends September 30, 2031. The maker dates, what they change, and what we list.
Read more →
Juniper EX4300 End of Sale: Dates for the 24 and 48 Port Models, the 32F and the 48MP
Juniper EX4300 (24P, 24T, 48P, 48T): end of sale March 31, 2024. Support ends March 31, 2029. The maker dates, what they change, and what we list.
Read more →
Juniper EX4300 vs EX4600: Which Network Switch Is Right for You?
The Juniper EX4300 switch is flexible and economical for SMBs or small and medium enterprises. It can accommodate up to 48 GbE interfaces and up to four 40GbE uplinks, which makes it perfect for companies seeking reliable performance rather than a large network, which can only have up to four 40GbE connections. The EX4300 is stackable, and in environments, up to 10 units can be managed as a single logical device, which is beneficial where networks are expanding.
Read more →
How to Choose Between Different Juniper EX Switch Models for Enterprise Networks
Juniper EX Switches are one of the fast rated switches for small and medium size companies. Townsend Networks deals in all kinds of switches and network equipment.
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Juniper QFX5100 End of Support: 2027 Dates for the 24Q, 48S, 48T and 96S
Juniper QFX5100 (24Q, 48S, 48T): end of sale July 1, 2022. Support ends July 1, 2027. The maker dates, what they change, and what we list.
Read more →
Scaling Your Data Center with the Juniper QFX5120-48Y Switch
Juniper QFX5120-48Y, a powerful 25G Ethernet switch with 48x 25GbE ports and 8x 100GbE uplinks, designed for high-speed enterprise and data center networking.
Read more →
Juniper QFX Series | The Backbone of Modern Data Center Networks
Juniper QFX Series are high-end networking best data centers, big companies, and clouds. QFX also provides features like programmability and integration.
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The Role of Juniper MX204 in Multi-Cloud Networking Solutions
Explore why Juniper MX204 Routers are a preferred choice these days for Multi-Cloud Networking Solutions. Detailed overview of the advantages and features.
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The Role of MPC7E-MRATE in Optimizing Network Performance
The Juniper MPC7E-MRATE enhances network efficiency with flexible port configurations, high-speed 100GbE support, and advanced traffic performance management.
Read more →
Expand Your Network Capacity | EX4600-EM-8F Expansion Module
Practical and Real-world Explanation of Expanding Network Capabilities of EX4600-EM-8F Expansion Module. Buy Refurbished & New Modules on 3 Years of Warranty.
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Compact and Efficient: Exploring the Juniper EX2300-C-12T Switch
Juniper EX2300-C-12T is Suitable for small and medium-sized companies. It has layer 2 and layer 3 management capabilities, making it a stand-alone solution.
Read more →Juniper questions
What does AFO or AFI mean on a Juniper part number?
It names the airflow. AFO takes air in through the front panel, the side with the ports, and exhausts it at the rear. AFI takes air in at the rear and exhausts it at the front. Every fan and power supply in the chassis must carry the same label.
Is the Juniper MX204 end of life?
Juniper announced end of life for the MX204-HW-BASE on June 15, 2026. The last order date is June 15, 2027 and end of support is June 30, 2032. The router keeps working after those dates.
What is the difference between the Juniper MX204 and the MX304?
The MX204 is a fixed 1U router with 400 Gbps of capacity and one routing engine. The MX304 is a 2U modular chassis whose line card modules add ports and capacity, up to 4.8 Tbps, and the premium chassis carries two routing engines.
Which Juniper EX and QFX switches have end of sale dates?
Juniper ended sale of the EX2300 on September 30, 2026, and set December 29, 2026 as the last order date for the EX4600 and the EX4300-48MP. The QFX5100 ended sale in 2022 and its support ends in 2027. The articles linked in this guide carry each notice.
Can I buy Juniper hardware after its end of sale date?
Yes. The hardware keeps working after the date. What ends is the maker's side: new software fixes, support cases and replacement under a maker contract. Used, refurbished and open box stock is how a fleet adds a matching unit after that date.
Do you buy Juniper equipment?
Yes. Send the list of parts you are retiring through the sell page and a person replies with an offer.
Refreshing, or decommissioning?
Tested, warrantied enterprise hardware in stock now, and cash offers for the gear you're pulling out. A human answers every quote.