The MikroTik CRS504-4XQ-OUT is a compact, energy-efficient 100 Gigabit outdoor networking switch designed for harsh environments. Featuring an IP66 weatherproof enclosure, it delivers four 100G QSFP28 ports with breakout cable support for 25G connectivity, enabling up to 16 simultaneous 25Gbps connections per port. The device integrates a Marvell Prestera 98DX4310 switch chip with non-blocking Layer 2 switching capacity of 789.8 Tbps and Layer 1 throughput of 400.1 Tbps. Powered by a QCA9531 MIPS processor running RouterOS v7 (license level 5), it supports advanced features including VLANs, ACLs, MLAG, jumbo frames, and L3 hardware offloading. Multiple power input options—802.3bt PoE-in (43-57V), DC jack (36-57V), and 2-pin terminal (36-57V)—provide deployment flexibility. Maximum power consumption reaches 38W with attachments or 25W without, utilizing passive cooling. Operating across -40°C to +70°C, it suits outdoor data center interconnects, carrier networks, and remote site deployments requiring high-speed fiber connectivity.
Multiple power inputs: 802.3bt PoE, DC jack, 2-pin terminal.
RouterOS v7 with VLANs, ACLs, MLAG, L3 offloading.
Low power consumption: 25W base, 38W maximum.
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Purchase orders accepted from qualified institutions.
Refunds within 14 days and replacements within 30 days of delivery with an RMA (25% restocking fee on customer-initiated returns), and every part carries our Standard 30-Day Warranty - see our return policy or contact US IT Hardware.
Featuring
Manufacturer part #
CRS504-4XQ-OUT
Brand
Mikrotik
Condition
New
MTBF
Approximately 200,000 hours at 25°C
Model
CRS504-4XQ-OUT
CPU Model
QCA9531
Switch Chip
Marvell Prestera 98DX4310
Product Line
Cloud Router Switch (CRS)
Product Type
Outdoor 100 Gigabit Ethernet Switch
CPU Frequency
650 MHz
CPU Core Count
1 core
PoE-in Support
Compatible systems
The CRS504-4XQ-OUT integrates seamlessly with any 100G QSFP28 fiber infrastructure and supports 25G breakout deployments. RouterOS v7 provides native compatibility with MikroTik management tools and third-party monitoring platforms. Multiple power input options ensure compatibility with diverse outdoor power architectures (PoE, DC, terminal blocks). No additional software or hardware licensing required beyond included RouterOS v7 level 5.
MikroTik Cloud Router Switch
Model: CRS504-4XQ-IN
Form factor: Indoor variant
Generation: Current
Indoor equivalent with same switching capacity and port configuration; CRS504-4XQ-OUT adds IP66 weatherproofing and outdoor temperature range.
Any vendor 100G QSFP28 devices
Model: Various
Form factor: Fiber optic
Generation: Current
Compatible with any 100G QSFP28 transceiver modules (QSFP28-SR4, QSFP28-LR4, QSFP28-ER4, etc.) and 25G breakout cables.
Best for
Data Center Interconnect
Connect multiple data center locations via 100G fiber links with non-blocking switching capacity and low-latency performance.
Outdoor Fiber Networks
Deploy in outdoor environments with IP66 protection, wide temperature range (-40°C to +70°C), and weatherproof enclosure for remote site connectivity.
Carrier Edge Deployments
Details
Shipping, warranty & returns
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Buy with confidence
New, certified-refreshed and OEM stock with guaranteed compatibility, backed by warranty on every part.
Yes; supports fiber optic cable glands; IP rating reduces to IP54 if glands removed
Included Accessories
48V/0.95A power adapter, Gigabit PoE injector, hose clamps, fastening set, screw set
Backward Compatibility
40G, 25G, 10G, 1G connections via appropriate transceivers
Breakout Cable Support
Yes; each 100G port supports 4x 25G lines (16 total 25G connections per port)
Storage
Storage Size
32 MB Flash
Storage Type
Flash memory
Processor
RAM Size
128 MB
CPU Model
QCA9531
CPU Frequency
650 MHz
CPU Core Count
1 core
CPU Architecture
MIPSBE
Network & Communication
Layer 1 Capacity
800.2 Tbps
Layer 1 Throughput
400.1 Tbps
Layer 2 Switching Capacity
789.8 Tbps non-blocking
Power Consumption
DC Jack Input
36-57V DC
2-Pin Terminal Input
36-57V DC
Power Adapter Current
0.95A nominal
Power Adapter Voltage
48V nominal
Max Power Consumption (with attachments)
38W
Max Power Consumption (without attachments)
25W
Physical Characteristics
IP Rating
IP66 (weatherproof)
Dimensions
330 x 200 x 70 mm (W x D x H)
Cooling Type
Passive (no fans)
Environmental
Voltage Monitor
Yes
Operating Temperature
-40°C to +70°C
CPU Temperature Monitor
Yes
PCB Temperature Monitor
Yes
Interface/Ports
Serial Console Port
RJ45
Number of 1GbE Ports
1x 100Mbps Ethernet (management)
Number of 100G QSFP28 Ports
4 ports
Support carrier-grade networking with MLAG, advanced ACLs, VLANs, and L3 hardware offloading for service provider edge aggregation.
Fiber Breakout Applications
Use 100G QSFP28 ports with breakout cables to connect 16x 25Gbps devices per port, maximizing port density in space-constrained outdoor installations.
Remote Site Aggregation
Aggregate multiple 10G and 25G connections at remote locations with low power consumption (25W base) and flexible power sourcing via PoE or DC.
Outdoor Event Networking
Provide temporary or permanent high-speed connectivity for outdoor events, festivals, and temporary installations with IP66 weatherproofing.
Frequently asked questions
What is the switching capacity and throughput of the CRS504-4XQ-OUT?
The CRS504-4XQ-OUT delivers 789.8 Tbps non-blocking Layer 2 switching capacity and 400.1 Tbps Layer 1 throughput. These metrics are verified via RFC2544 testing with Xena Networks equipment using 64, 512, and 1518-byte packet sizes at 0.1% packet loss tolerance, confirming wire-speed forwarding across all ports simultaneously.
Can I use 25 Gigabit devices with the 100G QSFP28 ports?
Yes. Each 100G QSFP28 port connects to four 25Gbps lines internally, allowing you to use breakout cables to connect up to 16 simultaneous 25Gbps devices per port. The switch supports backward compatibility with 40G, 25G, 10G, and 1G connections via appropriate transceiver modules.
What power options does the CRS504-4XQ-OUT support?
Three independent DC input options: 802.3bt PoE-in (43-57V), standard DC jack (36-57V), and 2-pin terminal (36-57V). A 48V/0.95A power adapter is included. Maximum power consumption is 38W with attachments or 25W without, enabling efficient outdoor deployment with flexible power sourcing.
Is the CRS504-4XQ-OUT suitable for outdoor deployment?
Yes. The device features an IP66 weatherproof enclosure, operates across -40°C to +70°C ambient temperature range, includes passive cooling (no fans), and has MTBF of approximately 200,000 hours at 25°C. Cable glands support fiber optic cables; removing glands reduces IP rating from IP66 to IP54.
What operating system and routing features does it support?
RouterOS v7 with license level 5 provides advanced switching and routing capabilities including VLANs, ACLs, MLAG, jumbo frames, and L3 hardware offloading. The QCA9531 650MHz MIPS processor with 128MB RAM and 32MB Flash storage enables stateful packet processing and complex network policies.
What management and monitoring capabilities are included?
The device includes a 1x 100Mbps Ethernet management port (RJ45), RJ45 serial console port, CPU temperature monitor, PCB temperature monitor, and voltage monitor. These enable remote management, troubleshooting, and real-time environmental monitoring in outdoor installations.
What is the physical form factor and mounting options?
Compact dimensions of 330mm x 200mm x 70mm with IP66 enclosure. Includes fastening set and hose clamps for secure outdoor mounting. The small footprint and low weight make it suitable for pole-mounted, wall-mounted, or rack-mounted deployments in space-constrained outdoor environments.
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