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Juniper

Juniper EX4400-48F-S | EX4400 48-Port SFP Switch, 12x10G, 2x100G, Spare Chassis

EX4400-48F-S

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Description

The EX4400-48F-S is a 1U fixed fibre access and aggregation switch from the Juniper EX4400 line. This is the spare chassis variant, supplied without power supplies or fan modules, so it suits replacement jobs and builds where you want to choose your own PSU and fan configuration. It is aimed at enterprise branch, campus access and aggregation, and data centre access networks that need high-density fibre connectivity.

The front panel carries 12 SFP+ ports (1000/10000BASE-X) and 36 SFP ports (100/1000BASE-X), plus 2 built-in 100GbE uplink or Virtual Chassis ports. A single extension module slot adds further 10G, 25G or 100G uplinks, using the EX4400-EM-1C (1x100GbE QSFP28), EX4400-EM-4S (4x10GbE SFP+) or EX4400-EM-4Y (4x25GbE SFP28). Up to 10 members can be joined in a Virtual Chassis over a 400 Gbps interconnect. There is no PoE on this model.

The switch runs Junos OS with the base software feature set, from release 21.1R1 onwards, and is cloud-ready with Juniper Mist Wired Assurance. At least one power supply and two fan modules are needed to operate it. AC, DC and VDC power supplies must not be mixed in one chassis.

Enquire with XS Network Tech for new or used pricing and availability.

Features

- Cloud-ready access switching with Juniper Mist Wired Assurance
- Campus fabrics using EVPN-VXLAN
- Virtual Chassis of up to 10 members over a 400 Gbps interconnect
- Optional extension modules for extra 10G, 25G or 100G uplinks
- Traffic monitoring with sFlow, IPFIX and flow-based telemetry
- Redundant load-sharing power supplies and variable-speed fans when populated

Warranty

All products sold by XS Network Tech include a 12-month warranty on both new and used items. Our in-house technical team thoroughly tests used hardware prior to sale to ensure enterprise-grade reliability.

All technical data should be verified on the manufacturer data sheets.

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Technical Specifications

FAQs

Technical Specifications

- Model: EX4400-48F-S (spare chassis)
- Form factor: Fixed 1U access switch
- Access ports: 12 x 1000/10000BASE-X SFP+ and 36 x 100/1000BASE-X SFP
- Built-in uplinks: 2 x 100GbE uplink/Virtual Chassis ports
- Extension module slot: 1 (optional 1x100GbE QSFP28, 4x10GbE SFP+ or 4x25GbE SFP28)
- 10GbE ports: 12 (16 with extension module)
- 25GbE ports: 0 (4 with extension module)
- 100GbE ports: 2
- PoE budget: None (no PoE)
- Virtual Chassis interconnect: 400 Gbps, up to 10 members
- Throughput: 714 Mpps
- Data rate: 456/912 Gbps
- CPU: 2.2 GHz quad-core Intel x86
- DRAM: 4 GB with ECC
- Storage: 20 GB
- Switching mode: Store and forward
- MAC addresses: 112,000
- Jumbo frames: 9216 bytes
- QoS queues per port: 12 (8 unicast, 4 multicast)
- IPv6 unicast routes in hardware: 87,000 prefixes, 40,000 host routes
- Weight: 5.8 kg (without PSU, fans or extension module)
- Dimensions (W x H x D): 44.17 x 4.37 x 43 cm with PSU and fans installed
- Cooling: 2 field-replaceable fan modules
- Minimum power supplies for a fully loaded chassis: 1
- Software: Junos OS 21.1R1 or later

FAQs

Q: Does the EX4400-48F-S need a software licence?
A: It runs Junos OS with the base software feature set. Advanced feature tiers and MACsec are separately licensed, and Juniper Mist Wired Assurance is a separate subscription.

Q: What power does this switch need?
A: A power supply is required to operate the chassis, with a minimum of one per fully loaded switch. The EX4400 line supports 550 W to 2000 W AC and DC supplies, and AC, DC and VDC units must not be mixed in one chassis. There is no PoE on this model.

Q: Which extension modules work with it?
A: The single extension slot accepts the EX4400-EM-1C (1x100GbE QSFP28), EX4400-EM-4S (4x10GbE SFP+) and EX4400-EM-4Y (4x25GbE SFP28).

Q: How does the -S model differ from other EX4400-48F variants?
A: The -S is the spare chassis, so it has no power supplies or fan modules fitted. It has the same 12x10G SFP+ and 36x1G SFP port layout, which suits replacements or custom PSU and fan configurations.

Q: Can I stack multiple units together?
A: Yes. The EX4400 line supports Virtual Chassis of up to 10 members over a 400 Gbps interconnect, using the 100GbE ports.

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