Multi-Gigabit Ethernet Switch. 5 10/100/1000/2500Mbps RJ45 Ports Ethernet switch supporting auto Negotiation and auto MDI/MDIX. ^^ IEEE 802.3X flow control provides reliable data transfer and Fanless design ensures quiet operation. ^^ Easy setup with no software installation or configuration needed. ^^ Desktop/wall-mounting design suit for different environments. ^^ Support 4Mbit Packet buffer, 15KB Jumbo Frame, Loop detection