NetVanta 1544F is a managed, 28-port, Layer 3, Gigabit Ethernet switch designed as an access layer or network backbone switch for small to medium-sized businesses. With the combination of the advanced multi-layer switching fabric, high-bandwidth capabilities, and enhanced Quality of Service(QoS) features, the NetVanta 1544F is ideal as an aggregation switch for high-bandwidth Voice over IP (VoIP), and converged voice and data networks.The NetVanta 1544F rackmount switch provides 28 Gigabit Ethernet ports, consisting of 24 standard 1 Gbps Small Form-factor Pluggable (SFP) Ethernet ports and four enhanced 2.5 Gbps SFP ports. The enhanced SFP ports support standard 1 Gbps up to 2.5 Gbps data rates. Together the four enhanced SFP ports can provide up to 20 Gbps of bi-directional bandwidth between interconnected NetVanta 1544 switches.