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Silver 1U rack-mount switch with 48 front ports and four SFP slots

HPE

HPE J9729A 2920-48G-POE+ 48-port network switch

SKU CH-63B0-K8XXA MPN J9729A

A 48-port Gigabit Layer 3 switch with PoE+ on every port, four SFP uplinks and a 1U rack form factor

  • Switch TypeLayer 3 Switch
  • 48 Gigabit ports connect many wired devices
  • PoE+ on every port powers phones and cameras without extra adapters
  • Layer 3 routing and Layer 4 awareness simplify network traffic handling
  • Four SFP slots add fibre uplinks or stacking modules
  • 1U rack height fits standard cabinets saving space

48-Port Gigabit Layer 3 Switch

The HPE 2920-48G-POE+ is a managed Layer 3 switch with 48 RJ-45 ports that run at 10/100/1000Base-T. It delivers Power over Ethernet Plus on every copper port for access points, phones or cameras. Four SFP slots and three expansion slots provide uplink or stacking flexibility in a 1U rack-mountable chassis.

Sustained PoE+ Load Behaviour

The unit draws power from its internal supply and does not support a redundant power supply, so the full PoE+ budget depends on that single source. Under continuous load the 1.7-inch high chassis relies on its built-in cooling to maintain throughput across all 48 ports without performance throttling.

Replacing Older Edge Switches

This switch replaces unmanaged or Layer 2 edge switches that lack PoE+ or routing capability. The jump is worth it when you need Layer 3 features, SFP uplinks and a single 1U device to power and connect up to 48 endpoints.

Highlights

  • 48 Gigabit ports connect many wired devices
  • PoE+ on every port powers phones and cameras without extra adapters
  • Layer 3 routing and Layer 4 awareness simplify network traffic handling
  • Four SFP slots add fibre uplinks or stacking modules
  • 1U rack height fits standard cabinets saving space

Specifications

BrandHPE
Switch TypeLayer 3 Switch
Shipping weight20.87 kg
Package size635 × 635 × 305 mm

Questions about this item

How much heat and fan noise does the 2920-48G-POE+ produce when running continuously with 48 PoE+ ports active?

The 1U rack form factor (1.7" high, 17.4" wide, 13.2" deep) and 12.57 lb weight indicate forced-air cooling; sustained full PoE+ load will increase fan speed and audible noise in quiet environments.

What cabling and power infrastructure must already be in place to use the 48 RJ-45 ports and four SFP uplinks?

You need Cat5e or better twisted-pair copper for the 10/100/1000Base-T ports, compatible SFP transceivers for the four shared SFP slots, and a standard AC supply since redundant power is not supported.

Will the 2920-48G-POE+ interoperate with older 10/100 switches and legacy phones connected to its Gigabit ports?

Yes, the 10/100/1000Base-T ports auto-negotiate down to 10 or 100 Mbps, so legacy Fast Ethernet devices and PoE phones work without configuration changes.

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