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Silver 1U rack-mount switch with 48 RJ45 ports and four SFP+ uplinks

HPE Juniper Networking

HPE Juniper Networking EX4100-48P 48-port PoE+ network switch

SKU CH-K6ZS-M2F0M MPN EX4100-48P

48-port PoE+ managed Layer 3 switch with 4 × 10 GbE uplinks, 4 × 25 GbE stacking ports, 740 W single-PSU or 1440 W dual-PSU budget, and Mist AI cloud management

  • Product formatDesktop
  • Management typeManaged
  • Main ports48 x RJ45
  • Security featuresMedia Access Control (MAC) limiting (per port and per VLAN)
  • Quality of serviceL2 QoS L3 QoS Ingress policing: 1 rate 2 color Hardware queu
  • Layer support3
  • 48 PoE+ ports power phones, cameras and APs with a 740 W single-supply budget
  • 1440 W total PoE budget when dual power supplies are installed for high-density deployments
  • Four 10 GbE uplinks and four 25 GbE stacking/uplink ports deliver high-speed aggregation
  • Layer 3 routing with 32,650 IPv4 prefixes and 16,100 multicast routes handles campus-scale traffic
  • Cloud onboarding and AI-driven analytics via Mist Wired Assurance simplify operations

48-port PoE+ access switch

The Juniper EX4100-48P is a managed Layer 3 switch built for business branches, campuses and data centres. It provides 48 RJ45 ports with PoE+ support plus four 10 GbE uplinks and four 25 GbE stacking or uplink ports for high-density aggregation.

Thermals and power draw

The chassis measures 44.1 x 4.37 x 35 cm without power supplies and extends to 38.24 cm depth when a supply is fitted. A single 920 W AC supply delivers a 740 W PoE budget, while dual supplies raise the budget to 1440 W for attached devices.

Build and connectivity

The desktop form factor weighs 4.66 kg and supports jumbo frames up to 9216 bytes, 64,000 MAC addresses and 253 VST instances. MACsec AES256 encryption, EVPN-VXLAN and Mist AI cloud management are standard, enabling secure, automated operations across the access layer.

How it compares

Measured against everything we stock in Ethernet & PoE Switches, at today’s prices. Recalculated every night.

Price $8,720.99
Pricier than about 90% of the 2,759 comparable items (median $482.99).

Specifications

Product
Brand nameJuniper Networks, Inc.
Product lineEX4100
Model nameEX4100-48P
Part numberEX4100-48P
Connectivity
Management typeManaged
Layer support3
Ports & slots
Main ports48 x RJ45
PoE-enabled ports48 x PoE
Power
Power over EthernetYes
Total PoE power1PSU : 740 W
2 PSU: 1440 W
Power detailsSupply rating: 920 W AC
Size & build
Product dimensionsBase Unit: 17.36 × 1.72 × 13.78 in (44.1 × 4.37 × 35 cm)
With power supply installed: 17.36 × 1.72 × 15.05 in (44.1 × 4.37 × 38.24 cm)
Product weight10.27 lb (4.66 kg)
Shipping weight4.54 kg
Package size508 × 508 × 305 mm
More details
Product formatDesktop

Questions about this item

How do I mount the EX4100-48P in a rack and which step is often missed?

The switch is 17.36 in wide, 1.72 in high and 13.78 in deep without a power supply, growing to 15.05 in deep once a 920 W AC unit is fitted. The step most installers miss is leaving enough rear clearance for the power-supply exhaust and cable bend radius.

Which components of the EX4100-48P will need replacement over time and how can I plan for it?

The 920 W AC power supply is the only field-replaceable part listed. With a single PSU the PoE budget is 740 W; adding a second unit raises it to 1440 W and provides redundancy, so plan to keep a spare PSU on site for hot-swap replacement.

What is the first hard limit the EX4100-48P hits under sustained heavy traffic?

The MAC-address table tops out at 64,000 entries and the IPv4 host-route table at 32,150 entries. Either ceiling stops new forwarding entries from being learned, so monitor both counters in Mist AI before they fill.

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