Description
The Juniper Networks® EX4100-48T-AFI is a 48-port 10/100/1000BASE-T Layer 2/3 Ethernet switch designed for secure, cloud-ready enterprise access. Part of Juniper’s EX4100 Series, it integrates Mist AI™ and Juniper Mist Wired Assurance for simplified cloud management, automation, and proactive insight into connected devices.
With 48 non-PoE 1GbE access ports, 4x 10GbE SFP+ uplinks, and 4x 25GbE SFP28 stacking/uplink ports, the EX4100-48T-AFI delivers high-performance, scalable access switching. It supports MACsec AES-256 encryption for enhanced data security, Virtual Chassis technology for stacking up to 10 switches, and EVPN-VXLAN to extend fabric architectures to the access layer.
This model includes redundant fans, a 150W AC power supply, and back-to-front airflow (AFI) for optimized cooling in data center environments. Designed for reliability and operational efficiency, the EX4100-48T-AFI ensures maximum uptime and seamless scalability for enterprise branch, campus, and data center networks
| Feature | Specification |
|---|---|
| Model | EX4100-48T-AFI |
| Ports | 48x 10/100/1000BASE-T RJ-45 access ports |
| Uplinks | 4x 1/10GbE SFP+ uplink ports |
| Stacking/Uplink Ports | 4x 10/25GbE SFP28 ports (Virtual Chassis or uplink use) |
| Switching Capacity | 188 Gbps (unidirectional) / 376 Gbps (bidirectional) |
| Throughput | 279 Mpps |
| MAC Address Table | 64,000 entries |
| Layer Support | Layer 2 and Layer 3 (OSPF, BGP, IS-IS, RIP) |
| Security | MACsec AES-256 encryption, DHCP snooping, IP source guard, DDoS protection |
| Virtual Chassis | Up to 10 interconnected switches |
| CPU / Memory | 1.7 GHz ARM CPU, 4 GB DRAM (ECC), 8 GB storage |
| Airflow | Back-to-front (AFI) |
| Power Supply | 150 W AC AFI, hot-swappable and redundant |
| Cooling | Dual field-replaceable fans |
| Operating Temperature | 0°C to 45°C (32°F to 113°F) |
| Dimensions (W x H x D) | 17.36 x 1.72 x 15.05 in (44.1 x 4.37 x 38.24 cm) |
| Weight | 4.54 kg (10 lb) |
| Management | Juniper Mist Cloud, Junos OS CLI, SNMP, RMON, SSH, HTTPS |
| Warranty | Enhanced Limited Lifetime Warranty with lifetime software updates |
Payment & Security
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Return Policy (Short Summary)
We offer a 30-day return window for most unopened, factory-sealed items.
Returns must be authorized before shipping back and must include all original packaging and accessories. Opened or used items are not returnable unless defective.
Some products—such as custom orders, special-order items, audio gear, software, and LED video walls—are non-returnable. Non-defective returns may be subject to a 20–30% restocking fee, and customers are responsible for return shipping costs.
For damaged or incorrect items, please contact us immediately.
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