This switch is an indoor variant of the prominent netFiber 9 switch, which is used by many small and medium ISPs for reliable 10-gigabit fiber connections over 100 meters. With five 1G SFP ports, four 10G SFP+ ports, and an additional Gigabit Ethernet port, this is the perfect upgrade for existing CRS212 setups. You get the modern ARM v7 CPU, 256 MB RAM, and improved cooling. The Marvell switch chips deliver phenomenal performance. The Gigabit Ethernet port is directly connected to the switch chip, so you can enjoy full gigabit speeds there. It also supports PoE-in, providing you with an additional power supply option in challenging locations. You can mount this switch in a standard 1-HE rack to keep everything organized. It offers all the performance you would expect from a rackmount device: CRS310 supports hardware-offloaded VLAN filtering and even some hardware-offloaded Layer 3 routing. CRS310-1G-5S-4S+IN is a fantastic tool for anyone working with indoor connections over 100 meters while keeping data loss and ping low. Fiber can be a great alternative to copper if you are concerned about electromagnetic interference, tampering, or eavesdropping.