TRENDnet 24-Port 10/100/1000 Mbps Gigabit Web Smart Switch with 4 Shared SFP Slots, Private & Voice VLAN Support, IPv6, Fanless, Rack Mountable, Lifetime Protection, TEG-240WS IPv6, 802.3ad, Private and Voice VLAN support 24 x Gigabit ports 4 shared SFP slots Fanless rack-mount metal housing LIFETIME WARRANTY &amp; TOLL-FREE TECH SUPPORT- TRENDnet backs this product with a Limited Lifetime manufacturer warranty as well as toll-free tech support.