... network environment.Features1.25G at fiber port, 10/100/1000M self-adaptive at Ethernet ports, Half/Full-Duplex self- ... dividing into 64 groups VLAN, support QOS, port blocking, and port mirroring;Support Store-and-Forward Working Mode; support ... Fiber and twisted-pair's connection and data transmission statusSupport 4 Ethernet ports' communication simultaneously, using for connecting NIC, switch, ...