TP-Link Jetstream 48 Port Gigabit Switch | L2 Managed Switch with 4 SFP Slots | Support L2/L3/L4 QoS and IGMP | IPv6 and Static Routing (T2600G-52TS/TL-SG3452) T2600G-52TS | Fast Server Corp. www.srvfast.com
Do you still have any doubt about the effect of QoS on the Switch of TP-Link?