HW FSR-112D-POE, 8x 10/100 Mbps /1 GE RJ45; 4x 100Mbps / 1 GE SFP ports; RJ-45 Serial Console Port,suport 802.3af/at,IEEE 802.1w,IEEE 802.3x,IEEE 802.3u,IEEE 802.3ab, Layer 2 and Layer 3