Cisco Catalyst 3750-X 48-Port Gigabit PoE+ Switch, IP Base

Cisco lists the WS-C3750X-48PF-S as a stackable 1RU Catalyst 3750-X with 48 10/100/1000 ports, all PoE+ (IEEE 802.3at, up to 30 W per port), an 1100 W AC power supply and the IP Base feature set. It is a PoE+ model, not UPOE. Available PoE budget is 800 W.

The default supply is the C3KX-PWR-1100WAC, 115 to 240 VAC at 50 to 60 Hz, and there are two modular power supply bays. One supply ships with the switch and a second can be added for redundancy. A 48-port PoE+ switch needs either two C3KX-PWR-1100WAC supplies or one 1100 W and one 715 W supply.

No uplink module is included. Four optional network module options fit: the C3KX-NM-1G with four GbE ports, the C3KX-NM-10G with two SFP+ and two SFP, the C3KX-NM-10GT with two 10GBASE-T, and the C3KX-SM-10G service module with two SFP+.

Stacking is StackWise Plus, up to nine switches per stack at 64 Gbps stack throughput. The switching fabric is 160 Gbps and the forwarding rate is 101.2 Mpps. Memory is 256 MB of DRAM and 64 MB of flash, with 1005 VLANs, 1K SVIs and 9216-byte jumbo frames. The switch measures 1.75 x 17.5 x 19.5 in (4.45 x 44.5 x 49.5 cm) and weighs 16.7 lb (7.6 kg).

Compared with the WS-C3750X-48P-S, it has an 1100 W supply against 715 W, an 800 W PoE budget against 435 W, and is deeper (19.5 in against 18.0 in). Port count, forwarding rate and feature set are the same.

See the C3KX-PWR-350WAC power supply and the Cisco switches category.