NETGEAR JFS524, Unmanaged, Fast Ethernet (10/100), Full duplex, Rack mounting, 1U NETGEAR JFS524. Switch type: Unmanaged. Basic switching RJ-45 Ethernet ports type: Fast Ethernet (10/100), Basic switching RJ-45 Ethernet ports quantity: 24. Full duplex. MAC address table: 4000 entries. Networking standards: IEEE 802.3i, IEEE 802.3u. Rack mounting, Form factor: 1U