24 RJ-45 autosensing 10/100/1000 ports (IEEE 802.3 Type 10BASE-T, IEEE 802.3u Type 100BASE-TX, IEEE 802.3ab Type 1000BASE-T) Duplex: 10BASE-T/100BASE-TX: half or full 1000BASE-T: full only 2 SFP 100/1000 Mbps ports Supports a maximum of 24 autosensing 10/100/1000 ports plus 2 SFP ports, or a combination 2 SFP autosensing 100/1000 ports (IEEE 802.3u Type 100BASE-TX, IEEE 802.3ab Type 1000BASE-T) Duplex: 100BASE-TX: half or full 1000BASE-T: full only Supports a maximum of 24 autosensing 10/100/1000 ports plus 2 SFP ports Mounts in an EIA-standard 19 in. telco rack (hardware included) horizontal surface, wall, and under-table mounting