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Silver 1U rackmount network switch with 48 SFP28 and 8 QSFP28 ports

HPE Juniper Networking

HPE Juniper Networking EX4650-48Y-AFI 48x25G 8x100G 1U network switch

SKU CH-2640-JT25Q

Managed 1U switch with 48×25GbE SFP28 ports, 8×100GbE QSFP28 uplinks, 4 Tbps throughput and 550 ns latency

  • Management typeManaged
  • High-density connectivity with 48x 25GbE SFP28 ports and 8x 100GbE QSFP28 uplinks
  • Low-latency performance down to 550 nanoseconds for data-intensive applications
  • Scalable Virtual Chassis architecture simplifies operations across interconnected switches
  • Energy-efficient design reduces power consumption and operational costs
  • Enhanced security with MACsec encryption protecting data transmission

High-Density 25G and 100G Switch

The Juniper EX4650-48Y-AFI is a managed 1U network switch built for enterprise and data centre environments. It provides 48 SFP28 ports for 25GbE fibre downlinks and eight QSFP28 ports configurable as 40GbE or 100GbE uplinks. Dual AC power supplies are included for redundancy.

Suits High-Throughput Fibre Deployments

This switch fits teams needing low-latency Layer 2 and Layer 3 switching with EVPN and MPLS support. It runs the Junos operating system and offers automation through Python and Zero Touch Provisioning. It does not suit buyers who require copper downlinks or Power over Ethernet on the access ports.

48 SFP28 and 8 QSFP28 Port Configuration

The port layout decides whether this chassis matches your cabling plan. Forty-eight 25GbE SFP28 downlinks and eight 40GbE or 100GbE QSFP28 uplinks deliver up to 4 Tbps throughput with 550 nanosecond latency. A 2.3 GHz quad-core CPU with 16 GB memory and 64 GB SSD drives the control plane.

How it compares

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

Price $6,683.99
Pricier than about 90% of the 2,759 comparable items (median $482.99).

Specifications

Product
Brand nameJuniper Networks, Inc.
Model nameEX4650-48Y-AFI
Connectivity
Management typeManaged

Questions about this item

What SFP28 and QSFP28 transceivers must I already have to use the 48x 25GbE and 8x 100GbE ports?

You need 25GbE SFP28 modules for the 48 downlink ports and 100GbE QSFP28 modules for the 8 uplink ports; the QSFP28 ports also accept 40GbE QSFP+ or 4x 25GbE breakout cables.

Will the EX4650-48Y-AFI interoperate with my existing 1GbE and 10GbE gear connected through the same SFP28 downlinks?

Yes, the 48 SFP28 downlink ports support 1GbE, 10GbE and 25GbE speeds, so legacy 1GbE and 10GbE transceivers work directly alongside 25GbE links.

How can I verify the switch is delivering the advertised 4 Tbps throughput and sub-550 ns latency after installation?

Monitor the Junos CLI for interface counters showing line-rate 25GbE and 100GbE traffic, check Virtual Chassis status if stacked, and confirm control-plane health via the 2.3 GHz quad-core CPU and 16 GB memory utilisation metrics.

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