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Juniper

Juniper EX4400-48P-S | EX4400 48-Port PoE++ Switch, 2x 100G QSFP28, Spare Chassis

EX4400-48P-S

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Description

The EX4400 is a 1 RU, 48-port Gigabit PoE++ access switch from Juniper's EX4400 series, built for enterprise campus and branch access layers. It suits deployments that need high-power PoE++ for Wi-Fi 6/6E access points, IoT and edge devices, with 100GbE uplinks. This EX4400-48P-S is the spare chassis version, supplied as a replacement unit for existing EX4400 deployments or for EVPN-VXLAN campus fabrics.

The switch provides 48 x 10/100/1000BASE-T ports supporting IEEE 802.3af/at/bt, delivering up to 90 W per port, plus 2 x 100GbE QSFP28 ports. An optional uplink module adds 4 x 10/25GbE. The chassis has two power supply slots and two fan module slots and uses front-to-back (AFO) airflow. With the 2000 W DC power supply, the PoE budget is 1700 W with one PSU and 2200 W with two. Virtual Chassis lets up to 10 units operate as a single logical device over a 400 Gbps interconnect. A quad-core x86 CPU with 4 GB DDR4 ECC memory and 20 GB eMMC storage runs Junos OS from release 21.1R1.

This model works with 2000 W DC power supplies and front-to-back (AFO) fan modules, 100GbE QSFP28 optics and DACs, and the optional 10/25GbE uplink module.

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

Features

- PoE++ (802.3bt) up to 90 W per port for access points, IoT and mobile devices
- Fast PoE keeps power to endpoints while the switch reboots
- Virtual Chassis stacking of up to 10 members as a single logical device
- EVPN-VXLAN fabric support for campus deployments
- 100GbE QSFP28 uplinks with an optional 10/25GbE uplink module
- Cloud onboarding and management with Juniper Mist Wired Assurance

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: EX4400-48P-S (spare chassis)
- Access ports: 48 x 10/100/1000BASE-T
- PoE standard: IEEE 802.3af/at/bt (PoE/PoE+/PoE++), up to 90 W per port
- Built-in uplink ports: 2 x 100GbE QSFP28
- Optional uplinks: 4 x 10/25GbE via uplink module
- Form factor: 1 RU
- Power supply slots: 2, accepts 2000 W DC power supplies
- PoE budget (48-60 V DC, 1 PSU / 2 PSU): 1700 W / 2200 W
- Fan module slots: 2, front-to-back (AFO) fan modules
- Airflow: front-to-back (AFO)
- Acoustic noise (2000 W DC AFO): 40.3 dBA (1 PSU) / 39.2 dBA (2 PSU)
- Virtual Chassis: up to 10 members, 400 Gbps interconnect
- CPU and memory: quad-core x86 CPU, 4 GB DDR4 ECC
- Storage: 20 GB eMMC
- Operating system: Junos OS, first supported in 21.1R1

FAQs

Q: What power supply does the EX4400-48P-S use?
A: It has two power supply slots and accepts 2000 W DC power supplies. With one PSU the PoE budget is 1700 W, and with two PSUs it rises to 2200 W.

Q: What fan modules does this switch use?
A: It has two fan module slots and uses front-to-back (AFO) airflow fan modules.

Q: How does the -S model differ from other EX4400-48P variants?
A: The -S is the spare chassis version, intended for replacing or spare use in existing EX4400 deployments. The 48-port PoE++ hardware and 2x 100GbE QSFP28 ports are the same as the standard model.

Q: Can this switch be stacked?
A: Yes. Virtual Chassis supports up to 10 members over a 400 Gbps interconnect, managed as one logical device.

Q: Which Junos release does it need?
A: The EX4400 series is supported from Junos OS release 21.1R1 onwards.

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