The 48-port 10/100/1000BaseT switching module provides 48 switched, 10/100/1000-Mbps autosensing, full- or half-duplex ports. The module has 48 RJ-45 connectors for use with either Category 3, Category 5, Category 5e, or Category 6 UTP cable. This module can be upgraded with an inline-power daughter card to support IP phones