Brand: MikroTik | Category: Network Switches
SKU: MT-CRS305-1G-4S+IN | Part #: CRS305-1G-4S+IN | MPN: CRS305-1G-4S+IN
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The MikroTik CRS305-1G-4S+IN delivers a compact, fanless switching architecture built on the Marvell 98DX3236 chip with a switching capacity of 88 Gbps, making it a high-performance option for enterprises requiring dense 10 Gigabit connectivity in a minimal footprint. This 5-port switch combines one 1 Gigabit Ethernet port (RJ45) with four 10G SFP+ ports, supported by an 800 MHz dual-core ARM Cortex-A9 processor, 512 MB DDR3 RAM, and 16 MB NAND Flash storage. The unit operates passively without cooling fans, consuming a maximum of just 12 W while supporting flexible power input via either 802.3af/at PoE on the Gigabit port or a 12–57 V DC jack connector. Dimensions of 113 × 89 × 28 mm make it ideal for rack mounting or space-constrained deployments across operating temperatures from −20 °C to +60 °C.
Network engineers and IT procurement teams standardizing on MikroTik infrastructure select the CRS305-1G-4S+IN for its combination of Layer 2 switching features—including 802.1Q VLAN, 802.3ad LACP, RSTP/MSTP, and port mirroring—alongside robust Layer 3 routing capabilities such as static routes, OSPF, BGP, MPLS, IPsec VPN, and integrated firewall and QoS functions. The switch runs RouterOS with a Level 5 license or switchable SwOS operation, enabling both advanced routing deployments and simplified switch-only mode depending on network architecture. Its ability to support both 10G and 1G modules on SFP+ ports provides migration flexibility for organizations transitioning infrastructure speeds without hardware replacement.
For enterprise environments requiring high-density 10G uplinks with minimal power draw and operational overhead, the MikroTik CRS305-1G-4S+IN (part number CRS305-1G-4S+IN) represents a proven building block for data center, campus, and service provider networks. Contact Omnixon Global today to request a quotation and discuss integration into your network architecture.
```| Brand | MikroTik |
| Category | Network Switches |
| SKU | MT-CRS305-1G-4S+IN |
| Part Number | CRS305-1G-4S+IN |
| Condition | New |
| Form Factor | Indoor / Desktop |
| Interface | Ethernet / SFP+ / SFP28 / QSFP28 |
| Speed | 10GbE |
| Manufacturer Part Number | CRS305-1G-4S+IN |
| Switch Chip | Marvell 98DX3236 |
| CPU | 800 MHz dual-core ARM Cortex-A9 |
| RAM | 512 MB DDR3 |
| Storage (NAND Flash) | 16 MB |
| 10G SFP+ Ports | 4 × SFP+ (supports 10G / 1G modules) |
| Gigabit Ethernet Ports | 1 × RJ45 (supports 802.3af/at PoE input) |
| Console Port | 1 × RJ45 serial (RS-232) |
| PoE Input | 802.3af / 802.3at on RJ45 port |
| DC Power Input | 12–57 V DC (jack connector) |
| Maximum Power Consumption | 12 W |
| Cooling | Passive fanless |
| Operating System | RouterOS (Level 5 license) with SwOS switchable |
| Switching Capacity | 88 Gbps |
| Dimensions (W × D × H) | 113 × 89 × 28 mm |
| Operating Temperature | −20 °C to +60 °C |
| Operating Humidity | 10 %–90 % RH (non-condensing) |
| Layer 2 Features | 802.1Q VLAN, 802.3ad LACP, RSTP/MSTP, MAC table, port mirroring |
| Layer 3 / Routing Features | Static routes, OSPF, BGP, MPLS, IPsec VPN, firewall, QoS |
| Management Interfaces | Winbox, WebFig, SSH, Telnet, SNMP v1/v2c/v3, REST API |
The MikroTik CRS305-1G-4S+IN 5-Port Switch (1x Gigabit, 4x 10G SFP+) is enterprise networking hardware for data-center, campus, and branch deployments. Common roles include core/distribution switching, server uplinks, top-of-rack fabric, and edge connectivity in mixed Cisco/Juniper/Arista environments.
Key specifications for the MikroTik CRS305-1G-4S+IN 5-Port Switch (1x Gigabit, 4x 10G SFP+): form factor Indoor / Desktop; interface Ethernet / SFP+ / SFP28 / QSFP28; 1 year support; new condition. Manufacturer part number CRS305-1G-4S+IN. For the full datasheet with electrical, environmental, and compliance details, contact our pre-sales engineering team.
The MikroTik CRS305-1G-4S+IN 5-Port Switch (1x Gigabit, 4x 10G SFP+) interoperates with standard switching protocols (LACP, MLAG/VPC, 802.1Q, OSPF/BGP). For specific cross-vendor scenarios — Cisco-to-Arista MLAG peering, fabric integration with Cumulus/SONiC, or migration from legacy Catalyst — our network engineers map a compatibility plan as part of the RFQ.