| Product Type | Stackable Multi-Gigabit Ethernet Switch |
| Model | 4120-48MW-4Y |
| Form Factor | 1U Rack-Mountable |
| Weight | 5.62 kg |
| Power Supply | Internal Fixed AC PSU + 1 Modular PSU Slot (Unpopulated) |
| Primary Power Source | AC Power |
| Power Redundancy Options | Yes (via optional modular PSU) |
| Max Power Consumption | 2535 W |
| PoE Power Budget | 90 W per port |
Extreme Networks 4120-48MW-4Y 48-Port MultiGig Stackable PoE+ Switch

Key Benefits
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- Delivers flexible high-speed connectivity with support for MultiGig and 100G/25G uplinks, ideal for rapidly scaling networks.
- Provides 90W PoE on all 48 ports and 1200W power capacity, enabling full deployment of power-hungry IoT devices and APs.
- Cloud-managed architecture simplifies deployment and management, reducing operational overhead in large environments.
Product Overview
4120 48 port stackable MultiGig switch with 48 10M/100M/1G/2.5GBaseT 90W POE ports 2x100G QSFP28 Universal/Stack ports 4x25G SFP28 ports fixed fans 1 internal fixed AC PSU 1 unpopulated modular PSU slotSpecifications
Product Overview
Wireless Features
| Wireless Capability |
Compliance & Origin
| Country of Origin | Taiwan |
| TAA Compliant | Yes |
| Certifications | UL, cUL, CE, FCC Class A, VCCI, EN 60950-1/62368-1 |
| Environmental Compliance | RoHS, WEEE |
Advanced Security Features
| Layer 2 Features | Yes (VLANs, STP, IGMP Snooping) |
| DoS Protection | Yes |
| 802.1X Authentication | Yes |
| Port Security | Yes |
| MAC Security Features | Sticky MAC, MAC limiting |
| Access Control Lists (ACLs) | Yes |
Interfaces
| Total Ports | 59 |
| Base-T Ports | 48 x 10M/100M/1G/2.5GBase-T with PoE++ |
| PoE (Power over Ethernet) | Yes, 802.3bt (90 W per port) |
| Stacking Ports | 2 x 100G QSFP28 Universal/Stack Ports |
| Uplink Ports | 4 x 25G SFP28 |
| Data Link Protocols Supported | Ethernet, Fast Ethernet, Gigabit Ethernet, 2.5G Ethernet |
| MAC Address Table Size | 32,000 entries |
| Throughput | 100 Gbps |
| Switching Capacity | Up to 880 Gbps |
| Forwarding Rate | Up to 654 Mpps |
| Media Type Supported | Copper and Fiber |
| Stacking Bandwidth | Up to 800 Gbps full duplex |
Physical & Environmental
| Width | 17.4 in (442 mm) |
| Depth | 13 in (330 mm) |
| Height | 1.7 in (43 mm) |
| Operating Temperature (Min) | 0°C |
| Operating Temperature (Max) | 50°C |
| Storage Temperature (Min) | -40°C |
| Storage Temperature (Max) | 70°C |
| Relative Humidity (Operating) | 10% to 95% non-condensing |
| Cooling | Fixed Fans |
Cloud Management & Licensing
| Management Platform | ExtremeCloud IQ (optional) |
| Remote Management Protocols | IPv4, IPv6, DHCP |
| Cloud-Enabled | Yes |
| CLI Configuration | Yes (via console and SSH) |
| SNMP Support | SNMPv1, SNMPv2c, SNMPv3 |
| Default Licensing Term | 4 Years (as per model SKU suffix -4Y) |