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, it is the perfect upgrade for existing CRS212 setups. You get the modern ARM v7 CPU, 256 MB of RAM, and improved cooling. The Marvell switch chips deliver phenomenal performance. The Gigabit Ethernet port is directly connected to the switch chip, allowing you to enjoy full Gigabit speed there. Additionally, it supports PoE-in, providing you with an extra power supply option in challenging locations. You can mount this switch in a standard 1U 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. The 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.