MikroTik RouterBOARD 260GS
The RB260GS is a small SOHO switch. It has five Gigabit Ethernet ports and one SFP cage powered by an Atheros Switch Chip.
It is powered by an operating system designed specifically for MikroTik Switch products - SwOS.
SwOS is configurable from your web browser. It gives you all the basic functionality for a managed switch, plus more: Allows to manage port-to-port forwarding, apply MAC filter, configure VLANs, mirror traffic, apply bandwidth limitation and even adjust some MAC and IP header fields.