NETGEAR ProSAFE 28-Port Gigabit Smart Stackable Switch (GS728TSB-100NAS) Static routing & comprehensive IPv6 support Advanced QoS including 802.1x authentication, ACL and protect ports Layers 2 & 3 based QoS for application prioritization; rate limiting 2 combo & 2 SFP ports Stack up to 6 switch on a single IP address