MikroTik CRS504-4XQ-OUT — Outdoor 100G Backbone Switch with QSFP28

The MikroTik CRS504-4XQ-OUT is a rugged, weatherproof outdoor switch designed for ISPs, WISPs, and enterprise networks demanding ultra-fast backbone connectivity. It features 4× 100G QSFP28 ports with flexible break-out support for multiple 25G or 10G links, powered by a 4-core ARMv8 CPU and 4 GB RAM. With dual hot-swappable power supplies, passive cooling, and RouterOS v7 with Layer 3 hardware offloading, it ensures reliable and high-performance operation. Its IP66-rated enclosure guarantees durability in harsh outdoor environments, making it a future-proof choice.

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Description

The MikroTik CRS504-4XQ-OUT is a high-capacity outdoor Cloud Router Switch designed for service providers, enterprise backbones, and data center-grade connectivity. With 4× 100G QSFP28 ports, this switch provides exceptional throughput and flexibility, allowing direct 100G uplinks or break-out to multiple 25G and 10G connections depending on deployment needs.

Powered by a 4-core ARMv8 CPU running at 1.8 GHz, paired with 4 GB DDR4 RAM and 128 MB NAND storage, the CRS504 delivers reliable performance with hardware offloading for Layer 2/3 switching. RouterOS v7 ensures advanced VLANs, routing, firewall, and monitoring features, making it suitable for complex and large-scale network deployments.

The CRS504-4XQ-OUT is built for the toughest environments with an IP66-rated outdoor enclosure, passive cooling, and dual hot-swappable power supplies (18–57 V DC). Its fanless design ensures silent, low-maintenance operation, while wide temperature tolerance guarantees reliability in extreme conditions.

Whether powering ISP towers, expanding enterprise backbones, or delivering multi-gigabit rural connectivity, the CRS504-4XQ-OUT combines raw performance, flexible uplinks, and rugged durability in one solution.


Application

ISP backbone, Enterprise networks, Data centers, High-speed outdoor deployments


Key Features

  • ✅ 4× 100G QSFP28 ports with breakout options for 25G/10G

  • ✅ 4-core ARMv8 CPU at 1.8 GHz with 4 GB DDR4 RAM

  • ✅ RouterOS v7 with hardware offloading for Layer 3 switching

  • ✅ Dual hot-swappable DC power supplies (18–57 V)

  • ✅ Fanless passive cooling design for silent operation

  • ✅ Rugged IP66 outdoor-rated enclosure

  • ✅ Wide operating temperature tolerance for harsh environments

  • ✅ Future-proof high-capacity solution for ISP and enterprise backbones

Specifications

Specification Details
Product Code CRS504-4XQ-OUT
Architecture MIPSBE
CPU / Chipset QCA9531
CPU Core Count 1
CPU Nominal Frequency 650 MHz
Switch Chip Model 98DX4310
RouterOS License Level 5
Operating System RouterOS v7
RAM 128 MB
Storage 32 MB Flash
Storage Type Flash
MTBF Approximately 200,000 hours at 25°C
Tested Ambient Temperature -40°C to 70°C
DC Inputs 3 (DC jack, PoE-IN, 2-pin terminal)
DC Jack Input Voltage 36–57 V
2-pin Terminal Input Voltage 36–57 V
PoE In 802.3bt
PoE In Input Voltage 43–57 V
Max Power Consumption 44 W
Max Power Consumption (without attachments) 25 W
Cooling Passive
Ethernet Ports 1 × 10/100 Mbps
Fiber Ports 4 × 100G QSFP28
Serial Console Port RJ45
PCB Temperature Monitor Yes
Voltage Monitor Yes
Environmental Rating IP66
Certifications & Approvals CE, EAC, RoHS

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