• Vibrant pink glossy Juniper fruit sticker for EX4400-48T-AFI switch
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Juniper

Juniper EX4400-48T-AFI | EX4400 48-Port Gigabit Switch, 550W AC, AFI Airflow

EX4400-48T-AFI

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Description

The EX4400 48-port Gigabit switch is a 1U fixed-configuration, non-PoE switch for campus and branch access layers, and for enterprise aggregation or distribution deployments that need 1GbE copper access with 100G stacking. This AFI variant uses back-to-front airflow, which suits racks where the switch ports face the hot aisle or the rear of the cabinet.

It provides 48 x 10/100/1000BASE-T ports with no PoE, and two rear 100GbE QSFP28 ports for Virtual Chassis, allowing up to 10 members to be managed as one logical device over a 400 Gbps interconnect. Switching capacity is 324 Gbps unidirectional (648 Gbps bidirectional), with up to 517 Mpps of L2/L3 throughput. The 550 W AC AFI power supply is autosensing across 100-120 V and 200-240 V, and a second PSU bay allows redundancy. One expansion module slot accepts optional 1/10/25/100GbE uplink modules.

The switch runs Junos OS and supports the Juniper software licensing tiers. It works with the EX4400-EM-4S (4x SFP+), EX4400-EM-4Y (4x SFP28) and EX4400-EM-1C (1x QSFP28) extension modules, the EX4400-FAN-AFI fan module and the JPSU-550-C-AC-AFI power supply.

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

Features

- Virtual Chassis technology: up to 10 members managed as a single device over 100GbE rear-panel ports
- Field-replaceable redundant fans and hot-swappable power supplies
- Optional uplink extension modules for 1/10/25/100GbE connectivity
- MACsec AES-256 capable with optional licence
- Back-to-front (AFI) airflow for racks with rear-facing ports
- Junos OS with L2/L3 feature set
- 12 hardware queues per port (8 unicast and 4 multicast)
- TDR cable diagnostics

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: EX4400-48T-AFI
- Ports: 48 x 10/100/1000BASE-T
- PoE budget: None (non-PoE)
- Virtual Chassis ports: 2 x 100GbE QSFP28 (rear)
- Expansion slot: 1 x module slot (EX4400-EM-4S, EX4400-EM-4Y or EX4400-EM-1C)
- Power supply: 550 W AC, AFI (back-to-front airflow)
- Input voltage: Autosensing 100-120 V / 200-240 V
- Maximum inrush current: 30 A
- Switching capacity: 324 Gbps unidirectional / 648 Gbps bidirectional
- L2/L3 throughput: 517 Mpps (64-byte)
- CPU: 2.2 GHz Quad-Core Intel x86
- Memory: 4 GB DRAM with ECC
- Storage: 20 GB
- MAC addresses: 112,000 per system
- VLANs: 4093
- Jumbo frames: 9216 bytes
- Virtual Chassis interconnect: 400 Gbps, up to 10 units
- Form factor: 1U rack-mount, 17.39 x 1.72 x 15.71 in (44.17 x 4.37 x 39.9 cm)
- Weight: 13.01 lb (5.9 kg) without PSU or fans
- Fans: 2 field-replaceable (EX4400-FAN-AFI)
- Operating temperature: 0 to 45 C
- Storage temperature: -40 to 70 C
- Operating humidity: 5% to 90% non-condensing

FAQs

Q: Does this switch provide PoE?
A: No. The EX4400-48T-AFI is a non-PoE access switch. Its 48 copper ports carry data only.

Q: How does the AFI model differ from other EX4400-48T variants?
A: The AFI variant uses back-to-front airflow with the 550 W AC AFI power supply and EX4400-FAN-AFI fans. It suits racks where the switch ports face the rear or hot aisle.

Q: How is it stacked?
A: Virtual Chassis runs over the two rear 100GbE QSFP28 ports using DAC cables. Up to 10 members can be managed as one logical device over a 400 Gbps interconnect.

Q: Which uplink modules does it accept?
A: It has one expansion slot that accepts the EX4400-EM-4S (4x SFP+), EX4400-EM-4Y (4x SFP28) and EX4400-EM-1C (1x QSFP28) modules.

Q: Can it use a second power supply?
A: Yes. The chassis has two load-sharing, hot-swappable PSU bays, and a second 550 W AC AFI supply (JPSU-550-C-AC-AFI) adds redundancy. One PSU is enough to run a fully loaded chassis.

Q: Does it support MACsec?
A: The EX4400 platform is MACsec AES-256 capable, and MACsec use requires an optional licence.

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