About the EX4400-48MP-S
Replacing a multigigabit access switch or assembling one from parts is the purpose of the EX4400-48MP-S. The spare chassis has 12 RJ-45 ports at up to 10GbE and 36 at up to 2.5GbE, but does not include power supplies or fans.
It supports Virtual Chassis with up to 10 members through its QSFP28 ports. The EX4400-48MP listed below is the populated AC configuration with front-to-back airflow.
What’s included
- EX4400-48MP-S multigigabit spare switch chassis without power supplies or fans
Sold separately
- Power supplies and fans
- Juniper Care, listed in Support & Licensing above
Choosing a version
- EX4400-48MP-S (this page): spare chassis only
- EX4400-48MP: AC power, front-to-back airflow
Related models: EX4400-24MP, EX4400-24P.
Not sure which version you need? Call (984) 225-1600 or request a quote and we’ll check it against your rack and network.
EX4400-48MP-S specifications
| Network ports | 48x RJ-45 |
|---|---|
| MACsec | Yes |
| Switching capacity (bidirectional) | 1020 Gbps |
| Forwarding rate | 758 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) | 13.97 lb / 6.34 kg |
| Power supplies and fans | Not included (spare chassis) |
| 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 (63)
Network ports
| RJ-45 Ports | 48 |
|---|---|
| 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 |
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) | 13.97 lb / 6.34 kg |
| Chassis Model Number | EX4400-48MP-S |
Cooling
| 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 |
|---|
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) | 510 Gbps |
|---|---|
| Packet Switching Bidirectional (64B) | 1020 Gbps |
| L2/L3 Throughput (64B) | 758 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 |
|---|---|
| Non-Operating Altitude | 16000 ft / 4877 m |
| Storage Temperature | -40° through 158° F / -40° through 70° C |
| Operating Altitude | 6000 ft / 1829 m |
| Humidity, operating (noncondensing) | 5% through 90% |
| Humidity, non-operating (noncondensing) | 0% through 90% |
| Seismic Tolerance | Zone 4 |
| Maintenance Clearance | 30 in / 76.2 cm |
Software
| Operating system | Junos OS |
|---|
Common questions
Is this a complete system?
No. This is the spare chassis. Power supplies and fans are ordered separately.
What do I order if I need a working switch, not just the chassis?
Order the EX4400-48MP (AC power, front-to-back airflow) instead. It is the complete switch listed next to this spare chassis on this page.
Does the spare support shared management?
Yes. It supports up to 10 Virtual Chassis members, using its QSFP28 connections once assembled.
Are the copper ports all the same speed?
No. The layout has 12 ports supporting up to 10GbE and 36 ports supporting up to 2.5GbE.


