
EX4300-48P-TAA Juniper Switch, Front-to-Back Airflow, Used, 48x 1GbE PoE+ RJ45 and 4x 40GbE QSFP+
- Condition
- Used, tested & guaranteed
- WARRANTY & RETURNS
- EX4300-48P-TAA has a 3-year warranty and a 30-day return policy. DOA units are replaced or refunded. Full terms are on the warranty page and the refund policy.
- Availability
- In stock
A firm price comes back, typically the same business day. Prefer a PO or wire? We take those too. Just ask.
The Juniper EX4300-48P-TAA is a switch from the Juniper EX4300 family with 48 ports of 1GbE PoE+ RJ45, 4 ports of 40GbE QSFP+, front-to-back airflow and AC power. It runs Junos OS. This unit is used: inspected, powered on and functionally tested by Townsend Networks technicians before listing. One switch per order, with a rack-mount kit and the power cable(s) to match.
- Compatible with
- An 1100 W AC power supply with the AIR OUT (AFO) label and fan modules labeled AIR OUT, with the optional 4-port 1G/10G SFP+ uplink module EX-UM-4X4SFP.
- HOW IT DIFFERS
- EX4300-48P-TAA is the TAA version of the 48 port PoE+ EX4300: Juniper's ordering table lists it as Trade Agreement Act-compliant, 10/100/1000BASE-T PoE-plus with a 1100 W AC supply that provides 950 W of PoE+ power. The non-TAA EX4300-48P is rated 51.0 for acoustic noise with front-to-back (AFO) airflow, and the data only EX4300-48T beside it has a 350 W supply and no PoE.
- Model
- EX4300-48P-TAA
- Network Ports
- 48 × 1GbE
- Connectors
- RJ45, QSFP+
- Type
- Switch
- Condition
- Used, tested & guaranteed
Technical details
| Brand | Juniper |
|---|---|
| Family | EX4300 |
| Uplinks | 4x 40GbE QSFP+ |
| Total ports | 52 |
| Fastest port | 40GbE |
| PoE | Yes |
| PoE standard | 802.3at |
| Operating system | Junos OS |
| Rack units | 1U |
| Airflow | Front-to-back |
| Power input | AC |
End of sale and support
| Model | Announced | End of sale | End of support | Notice |
|---|---|---|---|---|
| Juniper EX4300 (24P, 24T, 48P, 48T) | Juniper notice |
Questions about the Juniper EX4300 family
- What ports does the EX4300-48P-TAA have?
- The EX4300-48P-TAA has 48 × 1GbE, with uplinks of 4x 40GbE QSFP+ and 52 data ports in all.
- Which way does the air flow on the EX4300-48P-TAA?
- The airflow of the EX4300-48P-TAA is front-to-back.
- What power does the EX4300-48P-TAA use?
- The EX4300-48P-TAA uses AC and 802.3at.
- How much rack space does the EX4300-48P-TAA take?
- The EX4300-48P-TAA takes 1U of rack space.
- What software does the EX4300-48P-TAA run?
- The EX4300-48P-TAA runs Junos OS.
- Is the Juniper EX4300 end of life?
- Juniper's EX Series hardware milestones page shows three notices for the models on this page. The 24- and 48-port T and P models, including the AFI, DC and TAA versions: end of life announced 24 June 2022, last order 31 March 2024, end of support 31 March 2029. The EX4300-32F and EX4300-32F-DC (TSB105633): last order 31 March 2026, end of support 31 March 2029. The EX4300-48MP (TSB109284, announced 29 June 2026): last order 29 December 2026, end of support 29 December 2031.
- What do AFI and AFO mean on an EX4300?
- Airflow direction. Juniper labels fans and power supplies AIR IN (AFI) for back-to-front airflow and AIR OUT (AFO) for front-to-back airflow. The EX4300-48T-AFI ships with AFI fan modules and power supply; the standard EX4300-48T ships AFO. Match the airflow to the hot and cold aisles of the rack it goes into.
- Can EX4300 switches be stacked, and with what?
- Up to 10 EX4300 switches form a Virtual Chassis. The built-in QSFP+ ports are set up as Virtual Chassis ports by default and can be reconfigured as network ports. An EX4300 can also be a line card member of a mixed Virtual Chassis with EX4600 switches, where the EX4600 takes the primary and backup roles.
- Which uplink modules fit the EX4300?
- The 24- and 48-port T and P models take the 4-port 10GbE SFP+ module EX-UM-4X4SFP. The EX4300-32F takes the 2-port 40GbE QSFP+ module EX-UM-2QSFP or the 8-port 10GbE SFP+ module EX-UM-8X8SFP. The EX4300-48MP takes the EX-UM-2QSFP-MR (two 40GbE or 100GbE ports) or the EX-UM-4SFPP-MR (four 1GbE or 10GbE ports). A switch listing does not include an uplink module unless it says so.
- What condition and warranty come with a Juniper EX4300 switch from Townsend?
- Each listing prints its own condition. Units sold as new, refurbished or used are bench tested before they are listed: every port and module slot is checked and the previous owner's configuration is erased. They are covered by the Townsend warranty from the date of delivery; if the hardware fails in normal use we repair it or replace it with a tested unit, and the length and terms are on our warranty page. Unused hardware can be returned within 30 days of delivery. Juniper software licences and support contracts are not part of our warranty.
EX4300-48P-TAA 48x 1GB PoE+ RJ-45 4x 40GB QSFP+ F-B Airflow AC Switch
WHAT'S INCLUDED
One (1) Juniper EX4300-48P-TAA. Includes a rack-mount kit and the power cable(s) to match the switch.
CONDITION & TESTING
Condition: Used, Tested & Guaranteed EX4300-48P-TAA was tested by Townsend Networks technicians before listing. The test process is on the testing process.
Selling your Juniper EX4300-48P-TAA? We buy used network gear.
Questions about the EX4300-48P-TAA? Call 415-626-4231 or email sales@townsendnetworks.com.




