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Extreme Networks 4120 48 port Multi-Gig 1G/2.5G POE Switch
Cloud-Managed Switching Made Easy

Extreme Networks 4120 48 port Multi-Gig 1G/2.5G 90W POE Switch

Extreme Networks Products
4000 Series Switch
Extreme Networks 4120 48 port Cloud-Managed Stackable Multi-Gig 1G/2.5G POE Switch
48x10M/100M/1G/2.5GBaseT 90W PoE, Ports 2x100G QSFP28 Universal/Stack Ports, 4x1G/10G/25G SFP28 Ports, Fixed Fans, 1 Internal Fixed AC PSU, 1 Unpopulated Modular PSU Slot, Base Software
Our Price: $11,995.00

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The 4000 Series are ExtremeCloud IQ managed Layer 2 switches that simplify network operations while delivering all the power and flexibility of a traditional enterprise access switch. As a fully cloud-managed solution, the 4000 Series is ideal for enterprises looking for easy-to-manage, cost-effective Ethernet connectivity for their campus, branch or distributed sites.

4000 Series cloud management combines instant actions along with centralized visibility that simplify switch deployment, provisioning, and troubleshooting. Machine learning tools help quickly isolate issues, continuous cloud-delivery ensures latest management feature updates, and zero-touch provisioning allows rapid deployment across sites.

With 90W PoE, multi-gigabit access, stacking and policy services, the 4000 Series is a switch platform capable of addressing the evolving connectivity requirements of today’s and tomorrow’s wired networks.

The 4000 Series consists of 4120 and 4220 model families:

  • The 4120 family includes a 24-port and a 48-port model, with multi-gigabit (1/2.5Gb) and 90W PoE support across all access ports, and high-speed 4 x 10/25Gb uplink plus 2 x 100Gb uplink/stack ports, making it ideal as a wired concentrator for high-density Wi-Fi/IoT environments.
  • The 4220 family includes 8, 12, 24, and 48-port models with gigabit and multi-gigabit (1/2.5/5Gb) access ports, up to 90W PoE, and 4 x SFP+ uplink/stack ports and is a highly flexible enterprise Layer 2 wired access solution.


  • Cloud-managed switching that simplifies deployment, operation, and management
  • Automate and streamline switch provisioning and day-to-day operations with cloud-based instant actions
  • Mobile app to easily onboard, provision, and troubleshoot your switches
  • Automated, maintenance-free feature and security updates delivered via the cloud
  • ExtremeCloud IQ and/or ExtremeCloud IQ Site Engine for powerful and secure public cloud or onpremises management

Extreme Networks ExtremeSwitching X435 24-port Switch

Simplified Management with Instant Actions

Instant On-boarding

  • Zero-touch provisioning - Simply unpack, connect to network and provision.
  • ExtremeCloud companion app makes on-boarding faster and simpler.

Instant Port

  • Eliminates manual configurations with automated device adds, moves and changes across 4000 series switch ports.

Instant Stack

  • Simplified cloud-based stack provisioning as entire switch stack can be set-up through a single push-button operation.

Instant Secure Port

  • Simplifies and enhances security capabilities by leveraging ExtremeCloud Universal ZTNA (UZTNA) for authentication and policy enforcement along with all the Instant Port features.

Holistic visibility

  • Complete view of network, switch and wired clients from anywhere.

Extreme Universal Wired and Wireless

Designed to Work Together for Greater Outcomes

Extreme's Universal wired and wireless platforms designed to deliver a better network experience

  • Holistic visibility with a common management framework through ExtremeCloud IQ.
  • Unified, automated and secure Fabric services across both Wired and Wireless networks.
  • Multi-gigabit (1G/2.5G/5G) along with high bandwidth uplinks for increased 6 GHz Wi-Fi bandwidth needs.
  • Power over Ethernet (PoE) switch capabilities up to 90W for 6 GHz W-Fi access point (AP) power requirements.
  • Unifying Cloud Managed ZTNA for access point and switch security.
Extreme Networks ExtremeSwitching X435 24-port Switch


360° Views

Cloud-based 360° network topology and switch views enable drill down to the 4000 Series switch, port and connected clients for quick status, including historical trends. Aggregated 4000 Switch Health scores further offer a way to easily monitor an individual 4000 Series switch or all 4000 Series switches in the network, to quickly isolate and troubleshoot issues. Furthermore, unified views of the entire Extreme wired/wireless infrastructure are also available within ExtremeCloud IQ.

4000 Series Cloud Management

The 4000 Series has been designed for easy-to-use cloud management that simplifies deployment, provisioning and troubleshooting. 4000 Series switches can be managed either by ExtremeCloud IQ or ExtremeCloud IQ Site Engine for comprehensive, unified management with a consolidated view of users, devices, and applications across wired and wireless networks. As a wholly cloud-managed solution, 4000 Series switches avoid the need for complex on-switch provisioning via direct console interface, making it easier for users to set up and manage their entire 4000 Series wired network.

Continuous Cloud Feature Delivery

The 4000 Series benefits from continuous feature delivery with each new ExtremeCloud IQ update. It’s an automated way to get maintenance-free cloud-feature and security updates delivered to every 4000 Series switch in the network. And if there is a need to update 4000 Series firmware, this can also be centrally done from the cloud.

Fabric Attach Services

Fabric Attach services provide zero-touch edge provisioning and allow the 4000 Series to take advantage of the virtualized services and inherent security capabilities of the Extreme Fabric infrastructure. ToggleExtremeCloud IQ for the 4000 Series ExtremeCloud IQ provides a native cloud management option for the 4000 Series. With a rich set of automated onboarding, provisioning and visibility features, ExtremeCloud IQ eases the day-to-day task of managing the 4000 Series through the following unique cloud-native features.

ExtremeCloud IQ Site Engine for the 4000 Series

4000 Series switches can also be managed from ExtremeCloud IQ Site Engine as an on-premises cloud management option. ExtremeCloud IQ Site Engine supports complete end-to-end management and monitoring of wired, wireless and 3rd-party devices, with in-depth visibility and control of users, devices and applications. 4000 Series management features available using ExtremeCloud IQ Site Engine include zero-touch provisioning, device configuration, alarms and events, scripts and workflows, as well as inventory management including backup and restore functions. Also available are ExtremeAnalytics for 4000 Series telemetry reporting and ExtremeControl for OnePolicy configuration/support.

Flexible PoE

The 4000 Series offers models that include standards-based IEEE 802.3at 30W on 1 gigabit access ports and IEEE 802.3bt 30/60/90W on multi-gigabit ports. This includes 90W PoE support across all 24 or 48 ports of the 4120 hardware. PoE eliminates the need for additional electrical cabling and circuits otherwise needed to power edge devices, such as IP phones or wireless APs.

High-Performance Stacking

4120 models support 200Gb stacking via two built-in QSFP28 ports. Up to eight systems can be stacked using qualified direct-attach cables and optical transceivers.

4220 models support 40Gb stacking via two built-in SFP+ uplink ports. Up to eight systems can be stacked using qualified 10Gb direct attach-cables and optical transceivers.

Notes: Cross-stacking between 4120 and 4220 models is not supported. Stacking is not supported when running Fabric Engine.

Instant Onboarding

4000 Series onboarding to the cloud is a hands-off operation using zero-touch provisioning. Simply unpack the 4000 Series switch, connect it to the network, and it automatically finds its connection to the cloud, ready to be provisioned. The ExtremeCloud Companion mobile app makes onboarding even easier with on-site cloud set-up and switch troubleshooting capabilities.

Instant Port

Instant Port automates adds, moves or changes across 4000 Series switch ports, eliminating the need for manual port configuration. The 4000 Series automatically detects the connected device type and applies the correct port parameters. The result is significant time savings when adding or moving devices across the 4000 Series wired network. A simple cloud interface allows Instant Port definitions of customer designated device types which can then be applied across a single switch, a stack, or even all 4000 Series switches in the network.

Instant Secure Port

Instant Secure Port leverages ExtremeCloud Universal ZTNA (UZTNA) for authentication and zero-trust policy enforcement across 4000 Series switch ports, while providing the same add, move, and change automation features of Instant Port. It simplifies 4000 Series security by using UZTNA’s cloud-based security capabilities, including RADIUS authentication, unified visibility and reporting, as well as policy enforced locally on 4000 Series ports. In doing so, it delivers a consistent and frictionless security experience for any user or device connecting through the 4000 Series switch. (NOTE: ExtremeCloud UZTNA requires a separate license.)

Instant Stack

Instant Stack simplifies cloud-based stack provisioning, enabling the entire switch stack to be set-up through a single push-button operation. Real-world stack information, including each switch model and their stack order, is captured and replicated in the cloud. Once set up, the entire stack is then ready to be cloud-provisioned.

Multi-Gigabit Support

The 4120 supports 1/2.5Gb multi-gigabit operation across all its access ports. This includes 24 x 1/2.5Gb ports on the 4120-24MW-4Y and 48 x 1/2.5Gb ports on the 4120-48MW-4Y.

The 4220 includes multi-gigabit PoE models with ports that operate at 1/2.5/5Gb. The 4220-4MW-8P-4X and 4220-4MW-20P-4X models support 4 multi-gigabit ports and the 4220-8MW-40P-4X supports 8 multi-gigabit ports. This enables the connection of APs or other powered devices requiring more than 1 Gigabit of bandwidth.

Quiet (Fan-Off) Operation

Quiet (fan-off) mode operation at temperatures up to 35°C is supported on 4220 12-port PoE, non-PoE, and multi-gigabit models. This makes these models ideal for classrooms, hospitality suites, retail sites, or other noise-sensitive environments, especially outside of the wiring closet environment.


Switch Model Interfaces
  • 24 x 10M/100M/1G/2.5GBase-T ports PoE (90W) ports
  • 4 x 1/10/25Gb SFP28 ports (unpopulated)
  • 2 x Stacking/QSFP28 ports (unpopulated)
  • 1 x 100/1000BASE-T out-of-band management port
  • 1 x Serial console port (RJ-45)
  • 2 x USB A port
  • 1 x USB Micro-B console port
  • 48 x 10M/100M/1G/2.5GBase-T ports PoE (90W) ports
  • 4 x 1/10/25Gb SFP28 ports (unpopulated)
  • 2 x Stacking/QSFP28 ports (unpopulated)
  • 1 x 100/1000BASE-T out-of-band management port
  • 1 x Serial console port (RJ-45)
  • 2 x USB A port
  • 1 x USB Micro-B console port
  4120-24MW-4Y 4120-48MW-4Y
Performance and Scaling
Max Active 10Mb/ 100Mb/1Gb ports 0 0
Max Active 10Mb/100Mb/ 1Gb/ 2.5Gb ports 24 48
Max Active 1Gb/2.5Gb/ 5Gb ports 0 0
Max Active 1Gb/10Gb SFP+ ports 0 0
Max Active 1/10/25Gb SFP28 ports 4 4
Max Active 100Gb QSFP28 ports* 2 2
Aggregated Switch Bandwidth 720 Gbps 840 Gbps
Frame Forwarding Rate 535.7 Mpps 625.0 Mpps
Physical Specifications
Dimensions 17.4 in W / 1.7 in H / 13.0 in D
441 mm / 44 mm / 330 mm
17.4 in W / 1.7 in H / 13.0 in D
441 mm / 44 mm / 330 mm
Net Weight 11.9 lb / 5.42 kg 12.4 lb / 5.62 kg
Internal Fixed and Secondary Power Supply Options
Internal Fixed PSU - Max Power 860W ACPSU 1200W ACPSU
Secondary PSU XN-ACPWR-920W-FB-U
Max PoE Power Budget
With Internal Fixed PSU 680W (100-120VAC)
680W (200-240VAC)
640W (100-120VAC)
980W (200-240VAC)
With Internal Fixed PSU + 920W PSU 1440W (100-120VAC)
1440W (200-240VAC)
Not Supported
With Internal Fixed PSU + 1200W PSU 1380W (100-120VAC)
1540W (200-240VAC)
1340W (100-120VAC)
1780W (200-240VAC)
With Internal Fixed PSU + 2000W PSU Not Supported 1230W (100-120VAC)
2180W (200-240VAC)
Minimum/Maximum Power Consumption and Heat Dissipation
Minimum Power Consumption 48 W 56 W
Minimum Heat Dissipation 164 BTU/hr 191 BTU/hr
Maximum Power Consumption1 1830 W 2535 W
Maximum Heat Dissipation2 990 BTU/hr 1211 BTU/hr
Bystander Sound Pressure (dB(A)) 52.0 dB, 25°C (Typical)
52.9 dB, 25°C (Maximum)
75.6 dB, 50°C (Maximum)
51.4 dB, 25°C (Typical)
58.1 dB, 25°C (Maximum)
76.1 dB, 50°C (Maximum)
Declared Sound Power (Bels) 6.3 B, 25°C (Typical)
6.4 B, 25°C (Maximum)
8.7 B, 50°C (Maximum)
6.3 B, 25°C (Typical)
7.0 B, 25°C (Maximum)
8.7 B, 50°C (Maximum)

Layer 2 Switching

  • VLANs: Port-based, tagging, MAC-based, private, VLAN translation
  • Multi-VLAN Registration Protocol (MVRP)
  • Spanning Tree Protocol (STP), including:
    • IEEE 802.1D STP
    • IEEE 802.1w Rapid Spanning Tree Protocol
    • IEEE 802.1s Multiple Spanning Tree Protocol
    • Per VLAN Spanning Tree (PVST+)
  • Link Layer Discovery Protocol (LLDP) IEEE 802.1ab, including LLDP-MED
  • Internet Group Management Protocol (IGMP) static membership with support for IGMP v1/v2/v3 snooping (IPv4)
  • Link Access Groups (LAG) IEEE 802.3ad
  • Jumbo frame support
  • SFlow sampling for traffic monitoring

Layer 3 Services

  • IPv4/IPv6 Static Routing
  • Dynamic Host Configuration Protocol (DHCP) including DHCP server, client, relay, smart relay for IPv4 and IPv6
  • Multicast Listener Discovery (MLD) static membership with support for MDLD v1/v2 snooping (IPv6)


  • Access Control Lists (ACLs) on ingress and egress ports (IPv4/ IPv6)
  • Access Control Lists, ingress and egress meters
  • Policy Based Routing (PBR) for IPv4/IPv6
  • IEEE 802.1X authentication
  • MAC-based port security, lockdown
  • Extreme ONEPolicy

4000 Series Software Scaling

  • 4120 with Switch Engine
    • MAC Table: 16,000
    • IPv4 ARP Table: 400
    • IPv4 Route Table: 64
    • IP Multicast Entries (S,G,V): 150
    • IPv6 Neighbor Table: 200
    • IPv6 Route Table: 32
    • ACLs (Ingress/Egress): 1,024/256
    • VLANs: 4,094
    • Routed VLANs: 125
  • One Policy Scaling:
    • Policy Profiles: 63
    • Unique Permit/Deny Rules (ACL/Traditional): 440/184


  • Environmental Specifications
    • EN/ETSI 300 019-2-1 v2.1.2 - Class 1.2 Storage
    • EN/ETSI 300 019-2-2 v2.1.2 - Class 2.3 Transportation
    • EN/ETSI 300 019-2-3 v2.1.2 - Class 3.1e Operational
    • EN/ETSI 300 753 (1997-10) - Acoustic Noise
    • ASTM D3580 Random Vibration Unpackaged 1.5 G rms
  • Operating Conditions
    • Temperature: 0°C to 50°C (32°F to 122°F)
    • Humidity: 10% to 95% relative humidity, non-condensing
    • Altitude: 0 to 3,000 meters (9,850 feet)
    • Shock (half sine): 300 m/s2 (30G), 11 ms, 3 axes, 6 shocks/axis
    • Random vibration: 3 to 500 Hz at 1.5 G rms
    • Accelerations: 3Hz @ +10dB/Octave PSD 10Hz @ 0.006 PSD 500Hz @ 0.006 PSD
  • Environmental Compliance
    • EU RoHS - 2011/65/EU and amendments
    • EU WEEE - 2012/19/EU
    • EU REACH – Regulation (EC) No 1907/2006 Reporting
    • China RoHS - GB/T 26572-2011
    • Taiwan RoHS - CNS 15663(2013.7)
    Packaging and Storage Specifications
    • Temp: -40°C to 70°C (-40°F to 158°F)
    • Humidity: 10% to 95% relative humidity, non-condensing
    • Packaged Shock (half sine): 180 m/s2 (18 G), 3 axes, 100 shocks/axis
    • Packaged Vibration: 5Hz to 20Hz at .01 g2/Hz (PSD), 20Hz to 500Hz at –3 dB/Oct (PSD)
    • Packaged Random Vibration: 5Hz to 62Hz at velocity 5 mm/s, 62Hz to 500Hz at 0.2 G
    • Packaged Drop Height: 13 drops minimum on sides and corners at 42 inches (<10 kg box)

Regulatory and Safety

  • North American ITE
    • UL 60950-1
    • UL/CuL 62368-1 Listed
    • CSA 22.2 No. 60950-1 2nd edition 2014 (Canada)
    • Complies with FCC 21CFR 1040.10 (U.S. Laser Safety)
    • CDRH Letter of Approval (US FDA Approval)
  • European ITE
    • EN 62368-1
    • EN 60825-1Class 1 (Lasers Safety)
    • 2014 / 35/ EU Low Voltage Directive
  • International ITE
    • CB Report & Certificate per IEC 60950-1
    • CB Report & Certificate IEC 62368-1
    • AS/NZS 60950-1 (Australia /New Zealand)

EMI/EMC Standards

  • North American EMC for ITE
    • FCC CFR 47 part 15 Class A (USA)
    • ICES-003 Class A (Canada)
  • European EMC Standards
    • EN 55032 Class A
    • EN 55035
    • EN 61000-3-2,2014 (Harmonics)
    • EN 61000-3-3 2013 (Flicker)
    • EN 300 386 (EMC Telecommunications)
    • 2014/30/EU EMC Directive
  • International EMC Certifications
    • CISPR 32, Class A (International Emissions)
    • AS/NZS CISPR32
    • CISPR 24 Class A (International Immunity)
    • IEC 61000-4-2 / EN 61000-4-2: Electrostatic Discharge, 8kV Contact, 15kV Air, Criteria B
    • IEC 61000-4-3 / EN 61000-4-3 Radiated Immunity 3V/m, Criteria A
    • IEC 61000-4-4 / EN 61000-4-4 Transient Burst, 2 kV, Criteria B
    • IEC 61000-4-5 / EN 61000-4-5 Surge, 2 kV L-L, 2 kV L-G, Level 3, Criteria B
    • IEC 61000-4-6 / EN 61000-4-6 Conducted Immunity, 0.15-80 MHz, 3Vrms, 80%AM (1kHz), Criteria A
    • IEC/EN 61000-4-11 Power Dips & Interruptions, >30%, 25 periods, Criteria C
  • Country Specific
    • VCCI Class A (Japan Emissions)
    • ACMA RCM (Australia Emissions)
    • CQC Mark (China)
    • KCC Mark, EMC Approval (Korea
    • BSMI (Taiwan)
    • Anatel (Brazil)
    • NoM (Mexico)
    • EAC (Russia, Belarus, Kazakhstan)
    • NRCS (South Africa)
    • TEC (India)
  • IEEE 802.3 Media Access Standards
    • IEEE 802.3ab 1000BASE-T
    • IEEE 802.3bz 2.5G/5GBASE-T
    • IEEE 802.3at PoE
    • IEEE 802.3bt Type 4 PoE
    • IEEE 802.3ae 10GBASE-R
    • IEEE 802.3by 25GBASE-R
    • IEEE 802.3bm/bj 100GBASE-R
    • IEEE 802.3az Energy Efficient Ethernet

* Operate at 100Gb as uplinks; 50Gb as stacking ports
1 Includes maximum PoE load (W) through the switch
2 Does not include PoE load heat dissipated through external electronic load

Pricing Notes:

Extreme Networks Products
4000 Series Switch
Extreme Networks 4120 48 port Cloud-Managed Stackable Multi-Gig 1G/2.5G POE Switch
48x10M/100M/1G/2.5GBaseT 90W PoE, Ports 2x100G QSFP28 Universal/Stack Ports, 4x1G/10G/25G SFP28 Ports, Fixed Fans, 1 Internal Fixed AC PSU, 1 Unpopulated Modular PSU Slot, Base Software
Our Price: $11,995.00
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