The CRS309-1G-8S+ is a very compact yet powerful network switch. It features eight SFP+ ports, each supporting up to a 10 Gbit module, resulting in a total switching capacity of 162 Gbps and a total non-blocking throughput of 81 Gbps.
The device also features a dual-core 800 MHz processor, 512 MB RAM, a management Ethernet port with PoE power input, an RS232 serial port, grounding terminal, and is capable of dual boot (choose your preferred operating system, RouterOS or SwOS).