Description
The MikroTik CRS310-1G-5S-4S+IN is a compact fiber Cloud Router switch built for small offices and ISPs that need reliable 10-gigabit fiber connectivity over longer indoor distances. It’s designed as an indoor variant of MikroTik’s popular netFiber 9 series, engineered for demanding fiber-based deployments.
At its core, the switch offers 5 Gigabit SFP ports alongside 4 SFP+ ports supporting up to 10 Gbps each. This combination allows businesses to connect a mix of standard and high-speed fiber devices, along with a single Gigabit Ethernet port for direct copper connectivity or backup access.
With hardware offloaded VLAN filtering and some hardware offloaded Layer 3 routing, the MikroTik CRS310-1G-5S-4S+IN delivers fast, reliable 10 Gigabit fiber connections that can extend over distances exceeding 100 meters, ideal for larger buildings or campus-style deployments.
One of the standout features of this switch is its modern Marvell switch chip, which brings phenomenal performance to data transfers. The Gigabit Ethernet port connects directly to this switch chip, ensuring full gigabit speed is always available for management or standard traffic.
Power flexibility is another area where the MikroTik CRS310-1G-5S-4S+IN performs well. It supports PoE-in across an 18 to 57V range alongside a standard DC jack, giving installers multiple options for powering the device depending on their setup and location.
Built with an ARM v7 CPU running at 800 MHz and 256 MB of RAM, the switch handles complex routing tasks and high-traffic data flows smoothly, making it a genuine upgrade over older CRS212 deployments.
The switch includes an intelligent cooling system with a built-in fan controller, ensuring reliable heat dissipation during high-traffic scenarios or intense, sustained activity without compromising performance.
Its standard 1U rack-mountable design, complete with included rackmount ears, keeps installations organized and consistent with the rest of a server room or network closet setup.
Whether the goal is extending fiber connectivity across a larger office or building cost-effective ISP infrastructure, this device offers a dependable balance of speed, distance, and flexibility.
Overall, the MikroTik CRS310-1G-5S-4S+IN stands out as a practical choice for businesses that want mixed-speed fiber connectivity at extended range, all backed by the reliability of RouterOS.
MikroTik CRS310-1G-5S-4S+IN Specifications
| Specification | Details |
|---|---|
| Product Code | CRS310-1G-5S-4S+IN |
| Architecture | ARM 32bit |
| CPU | 98DX226S |
| CPU Core Count | 2 |
| CPU Frequency | 800 MHz |
| Switch Chip Model | 98DX226S |
| Dimensions | 200 × 166 × 44 mm |
| RouterOS License | Level 5 |
| Operating System | RouterOS v7 / SwitchOS |
| RAM | 256 MB |
| Storage Size | 16 MB |
| Storage Type | FLASH |
| MTBF | Approximately 200,000 hours at 25°C |
| Tested Ambient Temperature | -40°C to 70°C |
MikroTik CRS310-1G-5S-4S+IN Power
| Specification | Details |
|---|---|
| DC Inputs | 2 (DC Jack, PoE-IN) |
| DC Input Voltage | 18–57 V |
| PoE In | IEEE 802.3af/at |
| PoE Input Voltage | 18–57 V |
| Maximum Power Consumption | 20 W |
| Power Consumption (Without Attachments) | 8 W |
| Cooling | 1 Fan |
MikroTik CRS310-1G-5S-4S+IN Ethernet & Fiber
| Specification | Details |
|---|---|
| Gigabit Ethernet Ports | 1 × 10/100/1000 Mbps |
| SFP Ports | 5 |
| SFP+ Ports | 4 |
| Serial Console Port | RJ45 |
MikroTik CRS310-1G-5S-4S+IN Hardware Monitoring
| Specification | Details |
|---|---|
| CPU Temperature Monitor | Yes |
| PCB Temperature Monitor | Yes |
| Voltage Monitor | Yes |
MikroTik CRS310-1G-5S-4S+IN Certifications
| Specification | Details |
|---|---|
| Certifications | CE, EAC, RoHS |
| IP Rating | IP20 |
MikroTik CRS310-1G-5S-4S+IN Included in the Box
| Item | Details |
|---|---|
| Fastening Kit | K-48 Fastening Set |
| Rack Ears | Included |
| Power Adapter | 24V 1.2A Power Adapter |
MikroTik CRS310-1G-5S-4S+IN Switching Performance
| Mode | Configuration | 1518 Byte | 512 Byte | 64 Byte |
|---|---|---|---|---|
| Switching | Non-blocking Layer 2 Throughput | 3,738.6 kpps / 45,401.8 Mbps | 10,808.3 kpps / 44,270.7 Mbps | 68,452.4 kpps / 35,047.6 Mbps |
| Switching | Non-blocking Layer 2 Capacity | 3,738.6 kpps / 90,803.6 Mbps | 10,808.3 kpps / 88,541.4 Mbps | 68,452.4 kpps / 70,095.2 Mbps |
| Switching | Non-blocking Layer 1 Throughput | 3,738.6 kpps / 46,000.0 Mbps | 10,808.3 kpps / 46,000.0 Mbps | 68,452.4 kpps / 46,000.0 Mbps |
| Switching | Non-blocking Layer 1 Capacity | 3,738.6 kpps / 92,000.0 Mbps | 10,808.3 kpps / 92,000.0 Mbps | 68,452.4 kpps / 92,000.0 Mbps |
MikroTik CRS310-1G-5S-4S+IN Ethernet Test Results
| Mode | Configuration | 1518 Byte | 512 Byte | 64 Byte |
|---|---|---|---|---|
| Bridging | None (Fast Path) | 104.1 kpps / 1,264.2 Mbps | 119.1 kpps / 487.8 Mbps | 141.1 kpps / 72.2 Mbps |
| Bridging | 25 Bridge Filter Rules | 59.7 kpps / 725.0 Mbps | 59.7 kpps / 244.5 Mbps | 70.4 kpps / 36.0 Mbps |
| Routing | None (Fast Path) | 104.1 kpps / 1,264.2 Mbps | 129.7 kpps / 531.3 Mbps | 143.5 kpps / 73.5 Mbps |
| Routing | 25 Simple Queues | 56.7 kpps / 688.6 Mbps | 57.9 kpps / 237.2 Mbps | 65.2 kpps / 33.4 Mbps |
| Routing | 25 IP Filter Rules | 44.1 kpps / 535.6 Mbps | 45.6 kpps / 186.8 Mbps | 48.4 kpps / 24.8 Mbps |
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