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48-port PoE switches

31 products listed

Forty-eight ports in one rack unit is the density play: one switch, one uplink pair, one point of management for an entire floor. The trade-off is power and heat — these are the switches with 740 W or 1,440 W supplies and permanent fans.

They almost always come managed, and almost always with 10G uplinks, because nothing else keeps up with 48 active access ports.

48-port PoE switches in stock and on order

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How to choose 48-port

Power supplies and redundancy

High-density PoE switches often support dual or field-replaceable power supplies. If the switch feeds door access, emergency phones or CCTV, redundant supplies plus a correctly sized UPS matter more than the extra ports.

Uplink and aggregation

Plan two 10G uplinks minimum, aggregated to the core. On campuses with fibre between buildings you will also need the matching SFP+ transceivers at both ends and the right fibre type for the distance.

Related specifications

48-port — frequently asked questions

Is one 48-port switch better than two 24-port switches?
One 48-port switch is cheaper per port and simpler to manage, but it is also a single point of failure for the whole floor. Two 24-port switches split the risk and let you place them closer to the cable runs.
How much rack space and cooling do they need?
Physically 1U, but plan for depth and airflow: a fully loaded PoE switch can dissipate several hundred watts of heat, so it needs unobstructed front-to-back airflow in the cabinet.

Read before you buy

Comparison10G vs 2.5G Switches: Which Multi-Gig Standard Do You Need?10 GbE vs 2.5 GbE switches compared on cost, cabling requirements, and real-world throughput needs — with a practical recommendation for access-layer and core switching in 2026.ComparisonPoE vs PoE+ vs PoE++: Power Budgets ExplainedPoE (802.3af) vs PoE+ (802.3at) vs PoE++ (802.3bt) compared on per-port wattage, supported devices, and switch budget sizing — with a practical guide to avoiding the most common PoE spec mistake.GuideNetwork Switch Selection Guide: PoE, Multi-Gig, Stacking, and L3 Routing for 2026How to choose the right network switch in 2026 — managed vs smart, PoE budgets, multi-gig, stacking, L3 routing, and a head-to-head of Cisco, Aruba, Meraki, UniFi, Ruckus, and Mikrotik.