Overview

The MikroTik CRS310-8G+2S+IN is a compact managed switch from the Latvian networking hardware manufacturer MikroTik. It features eight Gigabit RJ45 ports and two 10G SFP+ slots, making it a cost-effective core switch for small offices and home labs. The metal chassis is designed for desktop placement and has a slim profile that fits neatly on a desk or shelf. Running on RouterOS or SwitchOS, the switch supports a full range of L2/L3 features including VLANs, link aggregation, port mirroring, and QoS. With the 10G uplinks, you can connect a NAS or server for high-speed data transfers. The device operates on 12V DC and consumes around 20W, keeping power costs low. A small internal fan ensures quiet operation even under load.

Connectivity & Compatibility

The front panel houses eight Gigabit RJ45 ports (10/100/1000 Mbps) and two SFP+ cages. The SFP+ slots accept both 10G SFP+ modules and 1G SFP modules, offering flexibility for different link speeds. On the rear, you'll find a DC jack (12V/2A) and an RJ45 serial console port for out-of-band management. Compatibility with SFP+ modules is generally good with MikroTik's own modules and many third-party 10G SFP+ transceivers (e.g., SFP-10G-SR). However, some passive DAC cables and budget modules may not link reliably, so checking the official compatibility list is recommended. Note that the switch does not support PoE; any PoE-powered devices will require separate injectors.

Product Info

The CRS310-8G+2S+IN was released in late 2023. Its street price in Japan is around ¥42,000 (as of September 2026), which is very competitive for a 10G-capable managed switch. The warranty is the standard MikroTik two years. Included in the box are the switch, a 12V/2A AC adapter, and a quick setup guide. SFP+ modules and rack-mount kits are sold separately. This product sits in the entry-to-mid-range segment. It offers 10G connectivity at a budget-friendly price, making it ideal for home lab enthusiasts and SOHO networks. For enterprise environments requiring full L3 routing or large-scale VLANs, MikroTik's higher-end CRS3xx or CCR series would be more appropriate.

Best Use Cases

Home lab enthusiasts: If you run multiple servers or a NAS at home and want a 10G backbone, this switch is a perfect fit. Its low power draw and quiet fan make it suitable for 24/7 operation. However, it's not rack-mountable out of the box, so plan for desktop placement. Small office network administrators: Use the eight Gigabit ports for client devices and the two SFP+ ports for high-speed connections to a file server or backup appliance. VLAN support allows network segmentation for security. Be aware that PoE is not available, so IP phones or cameras will need a separate PoE switch. * Budget-conscious 10G adopters: If you want to experiment with 10G networking without breaking the bank, this switch offers an unbeatable price-to-performance ratio. Just keep in mind that you only get two 10G ports, so plan your topology accordingly.

Things to Consider

This switch is primarily an L2 device with light L3 capabilities. Advanced routing protocols (OSPF, BGP) and firewall features depend on the RouterOS license level. If you only need basic switching, SwitchOS is sufficient; for routing, you'll need to upgrade to RouterOS Level4 or higher. SFP+ module compatibility can be hit-or-miss with third-party optics. Some cheap DAC cables may fail to establish a link, so it's wise to stick with MikroTik's own modules or well-tested alternatives. Check the official compatibility list before purchasing. Finally, the switch is not fanless. It includes a small 40mm fan that is quiet but not silent. If absolute silence is a priority, consider the fanless CRS305-1G-4S+IN instead, though that model has fewer Gigabit ports.

Product Disclosure (Amazon)

  • Manufacturer: Mikrotik
  • Seller: Amazon US
  • Fulfilled by: Amazon US
  • ASIN: B0CH9NHFHS
  • Note: This article covers a manufacturer-made product based on Amazon listing details.