Asus GigaX 2048 GIGAX2048Features: 48 connectivity 10 100 Mbps auto MDI MDIX ports. 2 SFP slots providing 1000BASE SX or 1000BASE LX transceiver and two RJ 45 for 10 100 1000 BASE T ports. Store and forward switching method. Non blocking wire speed on all ports with forwarding rate 10. 1 Mpps. Support of address tables with 8K size entries. Spanning Tree Protocol for reliable network communication Rule based QoS support by two priority levels. Support of up to 256 group port