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Silver rack-mount network switch with 48 copper ports and four SFP+ cages

Extreme Networks

Extreme Networks 5420F-48T-4XE network switch 48 x 10/100/1000BASE-T 4 x 1/10Gb SFP+

SKU CH-VFWW-QZK8N MPN 5420F-48T-4XE

A managed 48-port Gigabit switch with four 1/10Gb SFP+ uplinks, dual OS choice and cloud onboarding

  • Network Management TypeManaged
  • Primary Ports48 x 10/100/1000BASE-T ports • Full / Half-Duplex(autosensin
  • VLAN SupportYes
  • PoEAll 5420 models support 30W, 60W, and 90W PoE that conforms
  • StackableYes
  • DimensionsHeight: 43.2 mm (1.7 in.) Width: 442.0 mm (17.4 in.) Depth:

Model 5420F-48T-4XE

Struck-through versions exist but are not stocked here.

  • 48 copper ports connect desktop and IoT devices
  • 4 SFP+ uplinks deliver 10 Gbps backbone links
  • 256 Gbps aggregated bandwidth handles heavy traffic loads
  • Stackable to eight units via SFP-DD ports
  • Dual OS choice — Switch Engine or Fabric Engine

Universal edge switch for managed networks

The Extreme Networks 5420F-48T-4XE is a managed Layer 2/3 switch built for enterprise edge deployments. It provides 48 copper ports operating at 10/100/1000BASE-T and four SFP+ uplink ports running at 1 or 10 Gbps. The platform supports dual-persona operation, allowing a choice between Switch Engine and Fabric Engine operating systems at boot. It targets administrators who need a single hardware SKU for multiple OS strategies.

Base software and stacking change provisioning

The bundle includes base software licensing and two unpopulated SFP-DD stacking ports that enable up to eight units in a high-speed stack when running Switch Engine. Zero-touch onboarding connects the switch to ExtremeCloud IQ or ExtremeCloud IQ Site Engine automatically once powered and linked. MACsec capability on all primary and uplink ports adds link-layer encryption without extra licences. Fabric-enabled operations simplify secure provisioning across the stack.

Rack-mount chassis with front-to-rear airflow

The 1U chassis measures 43.2 mm high, 442.0 mm wide and 287.02 mm deep, weighing 4.64 kg. Front-mounted ports and side exhaust suit standard 19-inch racks with front-to-rear cooling. A single RJ-45 serial console port gives out-of-band management access. The four SFP+ and two SFP-DD cages are unpopulated, so transceiver selection matches link distance and fibre type. Buyers needing PoE on the 48 copper ports must choose a different 5420 model.

Highlights

  • 48 copper ports connect desktop and IoT devices
  • 4 SFP+ uplinks deliver 10 Gbps backbone links
  • 256 Gbps aggregated bandwidth handles heavy traffic loads
  • Stackable to eight units via SFP-DD ports
  • Dual OS choice — Switch Engine or Fabric Engine

Specifications

BrandExtreme Networks
Series5420
Model5420F-48T-4XE
Network Management TypeManaged
Primary Ports48 x 10/100/1000BASE-T ports
• Full / Half-Duplex(autosensing)
• MACsec-capable
4 x 1/10Gb SFP+ uplink ports(unpopulated)
• MACsec-capable
2 x Stacking/SFP-DD ports* (unpopulated)
1 x Serial console port (RJ-45)
1 x 10/100/1000BASE-T out-of-band management port
2 x USB A ports for management or external USB flash
1 x USB Micro-B console port
VLAN SupportYes
PoEAll 5420 models support 30W, 60W, and 90W PoE that conforms with IEEE 802.3bt. This enables the 5420 to address the needs of powered edge devices, while eliminating the need for additional electrical cabling and circuits. In addition, 5420 PoE models support perpetual and fast PoE for even more efficient and reliable powered edge device operation
StackableYes
DimensionsHeight: 43.2 mm (1.7 in.)
Width: 442.0 mm (17.4 in.)
Depth: 287.02 mm (11.3 in.)
Weight4.64 kg (10.23 lb.)
Shipping weight6.12 kg
Package size13 × 13 × 13 mm

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Questions about this item

How often do the internal fans need cleaning or replacement?

The 5420F-48T-4XE uses internal fan modules for cooling; Extreme Networks recommends periodic inspection and cleaning based on site dust levels, with replacement typically aligned to the hardware refresh cycle.

What throughput ceiling appears first when all 48 copper ports and four SFP+ uplinks run continuously at line rate?

The switch fabric is rated at 256 Gbps aggregated bandwidth with a 190 Mpps forwarding rate, so the frame-rate limit is reached before the raw bandwidth ceiling.

How much heat does the unit add to a rack when it operates 24/7 with full PoE load?

At maximum 90 W per port across 48 ports the power supply draws its peak rated input, producing heat equivalent to that draw; the 1.7 in. high chassis relies on front-to-rear airflow to exhaust it.

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