Mikrotik Cloud Router Switch, CRS305-1G-4S+IN; 4XSFP+, 1XGE, dual DCJacks, for high speed ring topology; Five-port desktop switch with oneGigabit Etherent port and four SFP+ 10Gbps ports; 1* CPU core count; CPUnominal frequency: 800 MHz; Size of RAM: 512 MB; Storage size: 16 MB;PoE in: 802.3af/at; Max power consumption: 18W;