Guide
Juniper EX4300 vs EX4400: which campus switch fits your network?
The EX4300 and EX4400 are both 1U campus access switches with Virtual Chassis technology and 16 ports per LAG. The short version: the EX4400 is the newer generation — roughly double the switching capacity (912 Gbps vs 496 Gbps), an enhanced limited lifetime warranty, more multigigabit and fiber model options, and higher-wattage power supplies for dense PoE. The EX4300 remains a proven, widely deployed option and is often the better value on the secondary and quote market.
Specifications side by side
| Specification | EX4300 | EX4400 |
|---|---|---|
| Switching capacity | 496 Gbps | 912 Gbps |
| Throughput (24-port) | EX4300-24P/24T: 333 Mpps (wire speed) | EX4400-24P/24T: 333 Mpps |
| Throughput (48-port) | EX4300-48P/48T: 369 Mpps (wire speed) | EX4400-48P/48T: 369 Mpps |
| Fiber / multigigabit models | EX4300-32F: 345 Mpps · EX4300-48MP (multigigabit) | EX4400-48F: 714 Mpps · EX4400-24MP / 48MP / 48MXP (multigigabit) |
| Operating temperature | AFO models: 0° to 45°C · AFI models: 0° to 35°C | 0° to 45°C |
| Ports per LAG | 16 | 16 |
| Virtual Chassis | Yes | Yes |
| Warranty | See Juniper terms for the EX4300 line | Enhanced limited lifetime warranty |
| Dimensions | 17.4 x 1.7 x 16.4 in (1 RU) | 17.39 x 1.72 x 16.93 in (with PSU and fans installed) |
| Weight (chassis, no PSU/fans) | 13 lb | 13.01 lb |
| Power supply options | 350 W / 715 W / 1100 W AC · 550 W DC | 550 W / 1050 W / 1600 W / 2000 W AC · 550 W / 2000 W DC |
Source: official Juniper EX4300 and EX4400 data sheets (PSN1014920177USEN, PSN1014920181USEN).
EX4400 models
- EX4400-24T
- EX4400-24P
- EX4400-48T
- EX4400-48P
- EX4400-24MP
- EX4400-48MP
- EX4400-48F
- EX4400-24X
- EX4400-48XP
- EX4400-48MXP
How to choose
- Choose the EX4400 when you need maximum headroom: 912 Gbps capacity, the 714 Mpps EX4400-48F fiber model, multigigabit options up to the 48MXP, 2000 W power supplies for heavy PoE loads, and the enhanced limited lifetime warranty.
- Choose the EX4300 when 24- or 48-port gigabit access with wire-speed throughput is enough and budget matters — it is one of the most widely deployed Juniper access switches ever made.
- Both support Virtual Chassis, so either line stacks for simplified management.
Need pricing on either line?
We quote EX4300 and EX4400 models — including hard-to-find part numbers — within one business day.