HP J9728A 2920-48G network switch

HP J9728A 2920-48G switch for mid-size networks

The HP J9728A 2920-48G switch provides 48 Gigabit Ethernet ports for wired connectivity in business environments. Four dual-personality ports accept either copper or SFP transceivers for uplink flexibility. Optional 10 Gigabit Ethernet modules and a stacking module expand capacity as the network grows. It suits IT teams that need a managed Layer 2 and Layer 3 foundation without PoE.

Thermals, noise and power in normal use

The fan-cooled chassis maintains stable temperatures during typical office traffic loads. Acoustic output remains low enough for rack or wiring-closet placement near workspaces. Power consumption scales with the number of active 10/100/1000 links and any installed 10 Gigabit uplinks. The unit ships with a standard internal power supply rated for the base configuration.

Behaviour under sustained load

Under continuous high-throughput conditions the switch forwards at line rate across all 48 ports and any active 10 Gigabit uplinks. The stacking module maintains performance when multiple units operate as a single logical device. Quality-of-service queues and IPv4/IPv6 routing tables handle persistent enterprise workloads without packet loss. The lifetime warranty covers the hardware for the duration of ownership.