About the EX4400-24P
The EX4400-24P provides 24 Gigabit RJ-45 connections with 802.3bt PoE for powered devices in campus and branch networks. Each access port supports up to 90 W, from a 2160 W system budget. This is the AC model with front-to-back airflow.
Two 100GbE QSFP28 ports carry uplink or Virtual Chassis connections, with up to 10 switches managed together. An optional 4x10GbE or 4x25GbE extension module adds another choice of uplink interfaces.
What’s included
- EX4400-24P Gigabit PoE switch with AC power and front-to-back airflow
- Standard software features, available without an Advanced or Premium license
Sold separately
- MACsec license
- Optional 4x10GbE or 4x25GbE extension module
- Advanced and Premium licenses and Juniper Care, listed in Support & Licensing above
Choosing a version
- EX4400-24P (this page): AC power, front-to-back airflow
Related models: EX4400-24MP, EX4400-24T.
Not sure which version you need? Call (984) 225-1600 or request a quote and we’ll check it against your rack and network.
EX4400-24P specifications
| Network ports | 24x RJ-45 |
|---|---|
| Module slots | 1 |
| MACsec | Yes |
| PoE | 24 ports, 802.3bt, up to 90 W per port, 2160 W budget |
| Switching capacity (bidirectional) | 648 Gbps |
| Forwarding rate | 482 Mpps |
| Form factor | 1U, fixed chassis |
| Dimensions (H x W x D) | 1.72 x 17.39 x 15.71 in (4.4 x 44.2 x 39.9 cm) |
| Weight (chassis only) | 12.47 lb / 5.66 kg |
| Airflow | Front-to-back |
| Power supplies | 2x JPSU-1050-C-AC-AFO, JPSU-1600-C-AC-AFO (1+1 redundant) |
| Fans | 2x EX4400-FAN (1+1 redundant, hot-swappable) |
| CPU | 2.2 GHz Quad-Core Intel x86 CPU |
| Memory | 4 GB |
| Storage | 20 GB |
| Virtual Chassis | Up to 10 members, 2x QSFP28 ports |
| MAC addresses (thousands) | 112 |
| IPv4 routes (thousands) | 130 |
| Operating temperature | 32° through 113° F / 0° through 45° C |
| Operating system | Junos OS |
Full specifications (76)
Network ports
| RJ-45 Ports | 24 |
|---|---|
| RJ-45 Port MACsec | Yes |
Management and other ports
| Console Ports | 2 |
|---|---|
| Console Port Type | RJ-45, Type C |
| Management Ports | 1 |
| Management Port Type | RJ-45 |
| USB Ports | 1 |
| USB Port Type | Type A |
PoE
| PoE power per port | 90 W |
|---|---|
| PoE budget | 2160 W |
| PoE port type | RJ-45 |
| PoE ports | 24 |
| PoE standard | 802.3bt |
Chassis
| Chassis type | Fixed |
|---|---|
| Form Factor | 1U |
| Chassis Height | 1.72 in / 4.3688 cm |
| Chassis Width | 17.39 in / 44.1706 cm |
| Chassis Depth | 15.71 in / 39.9034 cm |
| Chassis depth (with power supplies and fans) | 17.35 in / 44.069 cm |
| Weight (chassis only) | 12.47 lb / 5.66 kg |
| Chassis Model Number | EX4400-24P-S |
Power
| Power supplies | 2 |
|---|---|
| Power supply redundancy | 1+1 |
| Power supply airflow | Front-to-back |
| AC power supply model | JPSU-1050-C-AC-AFO, JPSU-1600-C-AC-AFO |
Cooling
| Airflow Direction | Front-to-back |
|---|---|
| Fan module model | EX4400-FAN |
| Fan modules | 2 |
| Fan redundancy | 1+1 |
| Hot-swappable fans | Yes |
Processor
| CPU | 2.2 GHz Quad-Core Intel x86 CPU |
|---|---|
| Memory (DRAM) | 4 GB |
Storage
| Internal Storage Size | 20 GB |
|---|
Routing engines and fabric
| Module Slots | 1 |
|---|
High availability
| HA / Virtual Chassis ports | 2 |
|---|---|
| HA / Virtual Chassis port type | QSFP28 |
| Virtual Chassis members (max) | 10 |
Switching and routing scale
| Packet Switching Unidirectional (64B) | 324 Gbps |
|---|---|
| Packet Switching Bidirectional (64B) | 648 Gbps |
| L2/L3 Throughput (64B) | 482 Mpps |
| IPv4 Unicast Host Routes (thousands) | 81 |
| IPv4 Unicast Routes Prefixes (RIB) (thousands) | 130 |
| IPv4 Multicast Routes (thousands) | 40 |
| IPv6 Unicast Host Routes (thousands) | 40 |
| IPv6 Unicast Routes Prefixes (RIB) (thousands) | 87 |
| IPv6 Multicast Routes (thousands) | 20 |
| IPv6 Neighbor Discovery Entries (thousands) | 12 |
| Egress VLAN ACL | 512 |
| Egress Port ACL | 1024 |
| Egress Routed ACL | 1024 |
| Ingress VLAN ACL | 2048 |
| Ingress Port ACL | 2048 |
| Ingress Routed ACL | 2048 |
| ARP Entries (thousands) | 24 |
| MSTP Instances | 64 |
| VSTP Instances | 510 |
| Link aggregation groups (LAGs) | 128 |
| Ports Per LAG | 16 |
| MAC Addresses Per System (thousands) | 112 |
| Maximum Mirroring Sessions | 4 |
| Traffic Mirroring Destination VLANs | 1 |
| Traffic Mirroring Destination Ports | 4 |
| VLAN IDs | 4093 |
| Jumbo Frame | 9216 bytes |
| QoS Hardware Queues Per Port (Multicast) | 4 |
| QoS Hardware Queues Per Port (Unicast) | 8 |
Environmental
| Operating Temperature | 32° through 113° F / 0° through 45° C |
|---|---|
| Storage Temperature | -40° through 158° F / -40° through 70° C |
| Non-Operating Altitude | 16000 ft / 4877 m |
| Operating Altitude | 6000 ft / 1829 m |
| Humidity, operating (noncondensing) | 5% through 90% |
| Humidity, non-operating (noncondensing) | 0% through 90% |
| Seismic Tolerance | Zone 4 |
| Acoustic Noise Level (Max) | 44.23 dB |
| Maintenance Clearance | 30 in / 76.2 cm |
Software
| Operating system | Junos OS |
|---|
Common questions
How much PoE does the EX4400-24P support?
Its 24 access ports support 802.3bt PoE at up to 90 W each. The system PoE budget is 2160 W.
Can I add more uplink ports?
Yes. The extension slot accepts an optional 4x10GbE or 4x25GbE module, ordered separately.
Is the MACsec license part of this configuration?
No. The switch is MACsec capable, but the optional MACsec license is sold separately.


