4 10/100BASET RJ45 auto-MDI/MDI-X ports
Complies with IEEE 802.3az Energy Efficient Ethernet (EEE)
12~48VDC wide range power input with power booster function
Supports 802.3x Flow control
Small Size 3.74x2.76x1.18in, it only need small space to install. Plug and play, no need to set