• The CRS305 is a compact yet very powerful switch, featuring four SFP+ ports, for up to 10 Gbit per port • The device has a 1 Gbit copper ethernet port for management access and two DC jacks for power redundancy, plus it's very sleek and compact metallic case without any fans, for silent operation • It has a "Dual boot" feature that allows you to choose between two operating systems - RouterOS or SwOS. If you prefer to have a simplified operating system with only switch specific features, use SwOS If you would like the ability to use routing and other Layer 3 features in your CRS, use RouterOS. You can select the desired operating system from RouterOS, from SWOS or from the RouterBOOT loader settings • 800 MHz CPU nominal frequency, 141 x 115 x 28 mm Dimensions, 512 MB RAM, 16 MB Storage size, 802.3af/at PoE in