MikroTik CRS504-4XQ-OUT Outdoor 100G Switch | 4× 100G QSFP28, IP66, 802.3bt PoE-In, RouterOS v7

MikroTik CRS504-4XQ-OUT Outdoor 100G Switch

MikroTik CRS504-4XQ-OUT is a compact, high-performance outdoor networking switch designed for 100 Gigabit Ethernet connectivity in demanding outdoor environments. It provides 4× 100G QSFP28 ports, a dedicated Ethernet management port, multiple power-input options and an IP66-rated weather-resistant enclosure.

Built around the Marvell Prestera 98DX4310 switch chip, the CRS504-4XQ-OUT is designed for high-speed fiber aggregation, outdoor network backhaul, ISP infrastructure, data-center interconnects and other applications where 100G connectivity needs to be deployed outside a traditional server room or data center.

4× 100G QSFP28 Ports

The CRS504-4XQ-OUT features four 100G QSFP28 ports. Each QSFP28 interface is connected to four 25G lanes, providing significant flexibility for high-speed network design.

With compatible optics, DACs, AOCs and breakout cables, the QSFP28 interfaces can be used for different connectivity requirements. A single port can be used for a 100G connection or broken out into multiple lower-speed connections, including 4× 25G links. MikroTik also documents support for compatible 40G, 10G and 1G configurations depending on the module or cable being used.

This makes the CRS504-4XQ-OUT useful not only as a 100G switch but also as a flexible aggregation platform for mixed-speed fiber networks.

Outdoor IP66 Network Switch

The CRS504-4XQ-OUT is specifically designed for outdoor deployment. Its enclosure carries an IP66 protection rating when installed with the appropriate cable glands, helping protect the equipment against dust and powerful water jets from any direction.

The manufacturer specifies an operating temperature range of -40°C to +70°C, making the switch suitable for demanding outdoor installations where conventional indoor networking equipment may not be appropriate.

For maintaining the specified IP66 protection, the manufacturer recommends using the cable glands as intended. Using the device without a cable gland can reduce the enclosure protection rating from IP66 to IP54.

Multiple Powering Options

The CRS504-4XQ-OUT provides multiple ways to supply power, which is particularly useful for outdoor network deployments where the available power infrastructure can vary.

• 802.3bt PoE-in through the Ethernet port
• 36–57V DC input through the DC jack
• 36–57V DC input through the 2-pin terminal

The PoE input operates from 43–57V and uses the IEEE 802.3bt standard. The device’s maximum power consumption is specified by MikroTik at up to 44W, with up to 25W without attached modules or accessories according to the current product specification.

High-Speed Fiber Aggregation

The CRS504-4XQ-OUT is well suited for high-capacity fiber aggregation. Four 100G QSFP28 interfaces can be used to connect high-speed switches, routers, servers, aggregation nodes or wireless backhaul infrastructure.

For example, a network can use one 100G port for an upstream connection, another for a redundant or secondary path, and the remaining ports for downstream aggregation. With compatible breakout technology, the same platform can also integrate 25G links into a 100G-oriented network architecture.

Marvell Prestera Switching Platform

At the heart of the CRS504-4XQ-OUT is the Marvell 98DX4310 switch chip. The hardware switching architecture handles high-speed Layer 2 traffic and supports selected Layer 3 hardware offloading features.

MikroTik’s published switching tests show approximately 400 Gbps Layer 1 throughput and up to approximately 800 Gbps Layer 1 switching capacity under specified non-blocking test conditions. Actual application performance depends on traffic patterns, packet sizes, configuration and enabled features.

RouterOS v7 Management

The CRS504-4XQ-OUT runs RouterOS v7 with a Level 5 license. RouterOS provides extensive network management and configuration capabilities, including VLANs, ACLs, link aggregation, jumbo frames and other switching and routing functions supported by the hardware.

The switch also includes an RJ45 serial console for management and recovery. Network configuration can be performed through MikroTik management tools such as WebFig and WinBox.

Designed for ISP and Outdoor Backhaul Networks

With four 100G QSFP28 interfaces and a weather-resistant enclosure, the CRS504-4XQ-OUT can be deployed in high-capacity ISP and WISP infrastructure where fiber aggregation needs to be located outside the main data center.

• ISP fiber aggregation
• WISP backbone networks
• Outdoor 100G backhaul
• Campus fiber networks
• Data-center interconnect extensions
• Telecom infrastructure
• High-capacity wireless backhaul
• Outdoor network aggregation
• Industrial fiber networks
• Temporary or event network infrastructure

CRS504-4XQ-OUT for 100G Backhaul

For networks where bandwidth requirements have grown beyond 10G and 25G, the CRS504-4XQ-OUT provides a compact path toward 100G networking. Its four QSFP28 ports allow multiple high-speed fiber links to be consolidated in a relatively compact outdoor enclosure.

Because the switch supports compatible breakout configurations, it can also be integrated into mixed-speed architectures instead of requiring every connected device to operate at 100G.

Compact Outdoor Form Factor

The CRS504-4XQ-OUT measures approximately 330 × 200 × 70 mm. Its compact enclosure makes it practical for outdoor cabinets, poles, network enclosures and infrastructure locations where rack space or indoor equipment rooms are unavailable.

The device uses passive cooling, avoiding conventional internal fan assemblies and helping keep the hardware compact and suitable for outdoor installations.

Technical Specifications

CRS504-4XQ-OUT vs Conventional Indoor 100G Switch

The key difference is deployment flexibility. Conventional 100G switches are commonly designed for controlled indoor environments, while the CRS504-4XQ-OUT combines 100G QSFP28 connectivity with an outdoor-rated enclosure and multiple DC/PoE power options.

This makes it particularly useful when a high-speed aggregation point must be installed closer to outdoor fiber routes, wireless infrastructure or remote network locations.

Important Installation Considerations

The CRS504-4XQ-OUT is a professional networking device and should be installed according to MikroTik’s installation requirements and applicable local electrical regulations. The manufacturer recommends professional installation.

For outdoor fiber installations, compatible cable glands should be used to maintain the intended enclosure protection. The exact QSFP28 optic, DAC, AOC or breakout cable should also be selected according to the required link speed, fiber type, distance and compatibility requirements.

Frequently Asked Questions

How many 100G ports does the MikroTik CRS504-4XQ-OUT have?

The CRS504-4XQ-OUT has 4× 100G QSFP28 ports.

Is the MikroTik CRS504-4XQ-OUT an outdoor switch?

Yes. It features an IP66-rated enclosure and is designed for outdoor networking applications when installed correctly with the appropriate cable glands.

Does CRS504-4XQ-OUT support 25G?

Yes. Each QSFP28 port is based on four 25G lanes, allowing compatible breakout configurations such as 4× 25G from a single QSFP28 port.

Can CRS504-4XQ-OUT support 40G?

Compatible QSFP configurations can support 40G connectivity. The exact supported mode depends on the compatible optical module or cable being used.

Does CRS504-4XQ-OUT support PoE?

Yes. It supports 802.3bt PoE-in through its Ethernet input for powering the switch.

What are the power input options on CRS504-4XQ-OUT?

The switch provides three power-input methods: 802.3bt PoE-in, a 36–57V DC jack and a 36–57V 2-pin terminal input.

What is the IP rating of CRS504-4XQ-OUT?

The CRS504-4XQ-OUT is rated IP66 when installed with the appropriate cable glands. Using it without the cable gland can reduce the enclosure protection to IP54.

Does CRS504-4XQ-OUT support RouterOS?

Yes. The CRS504-4XQ-OUT runs RouterOS v7 and includes a Level 5 RouterOS license.

What is the operating temperature of CRS504-4XQ-OUT?

MikroTik specifies a tested operating temperature range of -40°C to +70°C.

Is CRS504-4XQ-OUT suitable for ISP networks?

Yes. Its 100G QSFP28 interfaces, flexible breakout options, hardware switching and outdoor enclosure make it suitable for high-capacity ISP, WISP and fiber aggregation deployments.

Buy MikroTik CRS504-4XQ-OUT in India

IPVOICE TECHNOLOGIES supplies MikroTik networking equipment for ISP, WISP, enterprise, fiber, wireless backhaul and infrastructure projects. Contact our team for current pricing, GST billing, availability and project quotations for the MikroTik CRS504-4XQ-OUT.

IPVOICE TECHNOLOGIES
1/9 First Floor, Ratan Khand, Sharda Nagar,
Lucknow – 226002, Uttar Pradesh, India
Phone/WhatsApp: +91 7347735150
Email: ipvoicetechnologies@gmail.com
Website: ipvoicetechnologies.in

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