This product is either discontinued or we cannot get that from suppliers.
Dahua DH-PFS3006-4ET-60 Switch Unmanaged, 4 Port Poe Switch Unmanaged, Capacity 1.8Gbps, Buffer Memory 768Kb, DC 48~57V power adapter, MAC Table 2K, PoE Protocol IEEE802.3af (PoE), IEEE802.3at (PoE+), Hi-PoE, Ethernet Port 210/100Mbps Uplink ports, 410/100 Mbps PoE ports.
PFS3006-4ET-60 is a 4-port fast ethernet switch, which supports 250 meters long distance PoE transmission. It provides 410/100Mbps PoE ports and 2100 Mbps uplink ports.