The RB2011iLS has 11 ports: Gigabit SFP cage and five Gigabit Ethernet ports that can be switched together providing affordable wirespeed Fiber-to-Copper converter, and additional five Fast Ethernet ports. Board can be powered by power jack or PoE. Note that SFP transceiver is NOT included. RB2011iLS supports any 1.25G SFP transceivers that is within the SFF Committee specifications for SFP Transceivers. RB2011LS doesn?t have hardware support for PON (Passive Optical Network). Tested and recommended to use with MikroTik SFP modules: S-85DLC05D, S-31DLC20D and S-35/53LC20D (not included) It?s powered by the new Atheros next generation 600MHz 74K MIPS network processor and has 64MB of RAM and a Level4 RouterOS license. There is PoE output function for port #10 - it can power other PoE capable devices with the same voltage as applied to the unit. Maximum load on the port is 500mA.