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Silver 1U rackmount switch with 48 RJ45 ports and six QSFP28 uplinks

HPE Juniper Networking

HPE Juniper Networking QFX5120-48T-AFI network switch 48x10GbE 6x100GbE 1U AC airflow in

SKU CH-JZC3-8WR4Y MPN QFX5120-48T-AFI

A 1U managed switch with 48 RJ-45 ports at 1GbE or 10GbE and six QSFP28 uplinks at 40GbE or 100GbE, delivering 1.08 Tbps unidirectional L2/L3 throughput with 800 ns latency

  • 48 dual-speed copper downlink ports handle 1GbE and 10GbE connections
  • Six 100GbE QSFP28 or 40GbE QSFP+ uplink ports provide high-speed aggregation
  • Up to 2.16 Tbps bidirectional L2/L3 throughput with 800 ns latency
  • 2 GHz quad-core Intel CPU with 16 GB memory and 100 GB SSD
  • 1U AC-powered chassis with front-to-back airflow for rack efficiency

48-port 10GbE switch with 100GbE uplinks

The Juniper QFX5120-48T-AFI is a 1U managed switch offering 48 dual-speed RJ-45 ports running at 1GbE or 10GbE. Six QSFP28 ports provide 100GbE or 40GbE uplink connectivity. It delivers up to 1.08 Tbps unidirectional and 2.16 Tbps bidirectional Layer 2 and 3 throughput with latency as low as 800 nanoseconds. An internal 2.2 GHz quad-core Intel CPU with 16 GB memory and 100 GB SSD runs the control plane.

Suited for dense copper access

This unit fits data-centre top-of-rack or campus aggregation roles where 48 copper downlinks must feed six 100GbE uplinks. Front-to-rear airflow matches standard cold-aisle intake designs. Networks that require fibre downlinks, larger port counts, or rear-to-front cooling should evaluate other models.

Six QSFP28 ports set the uplink capacity

The six 100GbE uplink ports define the aggregate egress bandwidth available to the 48 access ports. Confirm that this uplink count and speed satisfy your oversubscription targets before purchase.

Highlights

  • 48 dual-speed copper downlink ports handle 1GbE and 10GbE connections
  • Six 100GbE QSFP28 or 40GbE QSFP+ uplink ports provide high-speed aggregation
  • Up to 2.16 Tbps bidirectional L2/L3 throughput with 800 ns latency
  • 2 GHz quad-core Intel CPU with 16 GB memory and 100 GB SSD
  • 1U AC-powered chassis with front-to-back airflow for rack efficiency

Specifications

No published specifications for this item yet.

Questions about this item

What is the correct way to mount the QFX5120-48T-AFI so the airflow-in fans match my cold-aisle layout?

Install the 1 U chassis with the port side facing the cold aisle so the built-in fans pull cool air from front to back through the switch.

Which components in the QFX5120-48T-AFI are likely to need replacement after extended operation?

The internal AC power supplies and fan modules are field-replaceable units designed for hot-swap maintenance without downtime.

At what point does the QFX5120-48T-AFI hit its throughput ceiling during sustained line-rate traffic?

The fabric delivers up to 1.08 Tbps unidirectional or 2.16 Tbps bidirectional L2/L3 switching capacity before congestion occurs.

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