The DXS-3400 series of top-of-rack 10G managed stack switches from D-Link are compact, high-performance switches for wired switching and routing with 10-gigabit speeds and extremely low latency. The DXS-3400-24TC has 20 x 10GBASE-T ports and 4 10GBASE-T/SFP+ combo ports, making it the ideal choice for data center, core and distribution network applications. Number/type of ports: 20 x 100M/1000M/10Gbit/s BaseT / 4 x 10GBASE-T/SFP+ Combo, SFP/SFP+ connectors: - / 4, 10G connectors: 24 x RJ45 / max. 4 x SFP+, Management Level: Managed, PoE ports/PoE power budget: -, OSI level/stackable: Layer 2+ / Yes, Fan: 3 x Smart, Housing shape/material: 19 inch / metal, including 19 inch rack mount kit