Description
The MikroTik CRS504-4XQ-IN is a compact and energy-efficient 100 Gigabit Cloud Router switch built for data centers, ISPs, and modern infrastructures that need next-generation speed without the usual footprint or power draw. It’s designed as an affordable doorway into 100 Gigabit networking for businesses upgrading from existing 10G or 25G networks.
At its core, the switch offers 4 100G QSFP28 ports alongside a single management port for out-of-band access. This combination allows businesses to connect other 100 Gigabit devices directly, or use breakout cables to connect multiple 25 Gigabit devices from a single port.
Each QSFP28 port on the MikroTik CRS504-4XQ-IN ties into four 25 Gigabit lines, giving businesses the flexibility to connect up to 16 x 25 Gigabit devices from just four physical ports on the switch.
One of the standout features of this switch is its mix-and-match flexibility, letting administrators run 100 Gigabit speeds on one port, 40 Gigabit on another, 4×25 Gigabit on a third, and even 10G or 1G connections on the fourth, all from the same compact unit.
Power efficiency is another area where the MikroTik CRS504-4XQ-IN performs well. With power consumption as low as 25W without attachments, this switch brings genuine 100 Gigabit capability to everyday setups that wouldn’t normally justify traditional data-center-grade hardware.
Reliability is reinforced through dual hot-swap power supplies, meaning a single power failure won’t interrupt network operations, a critical feature for businesses that depend on continuous, uninterrupted connectivity.
Built with the powerful Marvell 98DX4310 switch chip and running RouterOS v7, the switch delivers reliable Layer 2 and Layer 3 functionality, giving administrators the tools to manage traffic, enforce security protocols, and optimize bandwidth across diverse network environments.
The switch also includes CPU, PCB temperature, and voltage monitoring, giving administrators visibility into the device’s health directly through RouterOS for proactive maintenance.
Whether the goal is upgrading a data center backbone or building efficient, high-speed intra-office networking, this device offers a dependable balance of speed, flexibility, and power efficiency.
Overall, the MikroTik CRS504-4XQ-IN stands out as one of the most cost-effective ways to enter 100 Gigabit networking, all backed by the reliability of RouterOS.
MikroTik CRS504-4XQ-IN Specifications
| Specification | Details |
|---|---|
| Product Code | CRS504-4XQ-IN |
| Architecture | MIPSBE |
| CPU | QCA9531 |
| CPU Core Count | 1 |
| CPU Nominal Frequency | 650 MHz |
| Switch Chip Model | 98DX4310 |
| Dimensions | 320 × 185 × 44 mm |
| RouterOS License | 5 |
| Operating System | RouterOS v7 |
| RAM Size | 64 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 CRS504-4XQ-IN Powering
| Specification | Details |
|---|---|
| AC Inputs | 2 |
| AC Input Range | 100–240 V |
| DC Inputs | 3 (DC Jack, PoE-IN, 2-pin Terminal) |
| DC Jack Input Voltage | 36–57 V |
| PSU Slots | 2 |
| 2-pin Terminal Input Voltage | 36–57 V |
| Frequency | 47–63 Hz |
| Maximum Power Consumption | 41 W |
| Power Consumption Without Attachments | 25 W |
| PoE Input | 802.3bt |
| Cooling Type | 2 Fans |
| PoE Input Voltage | 43–57 V |
MikroTik CRS504-4XQ-IN Ethernet & Fiber
| Specification | Details |
|---|---|
| 10/100 Ethernet Ports | 1 |
| 100G QSFP28 Ports | 4 |
MikroTik CRS504-4XQ-IN Peripherals & Certification
| Specification | Details |
|---|---|
| Serial Console Port | RJ45 |
| PCB Temperature Monitor | Yes |
| Certification | CE, EAC, ROHS |
| IP Rating | IP20 |
MikroTik CRS504-4XQ-IN Included Parts
| Specification | Details |
|---|---|
| Rack Mount Accessories | Rack Ears (CRS504) |
| Screw Kit | K10 Screw Kit |
| Power Cables | 2 × IEC Cords |
MikroTik CRS504-4XQ-IN Switching Performance
| Mode | Configuration | 1518 Byte | 512 Byte | 64 Byte |
|---|---|---|---|---|
| Switching | Non-blocking Layer 2 Throughput | 32,517.9 kpps / 394,897.1 Mbps | 94,008.5 kpps / 385,058.6 Mbps | 595,386.9 kpps / 304,838.1 Mbps |
| Switching | Non-blocking Layer 2 Capacity | 32,517.9 kpps / 789,794.3 Mbps | 94,008.5 kpps / 770,117.3 Mbps | 595,386.9 kpps / 609,676.2 Mbps |
| Switching | Non-blocking Layer 1 Throughput | 32,517.9 kpps / 400,100 Mbps | 94,008.5 kpps / 400,100 Mbps | 595,386.9 kpps / 400,100 Mbps |
| Switching | Non-blocking Layer 1 Capacity | 32,517.9 kpps / 800,200 Mbps | 94,008.5 kpps / 800,200 Mbps | 595,386.9 kpps / 800,200 Mbps |
| Routing | None (L3HW) | 32,509.7 kpps / 394,798.1 Mbps | 93,984.9 kpps / 384,962.1 Mbps | 299,891.2 kpps / 163,140.8 Mbps |
| Routing | 25 IP Filter Rules (Fasttrack L3HW) | 32,509.7 kpps / 394,798.1 Mbps | 93,984.8 kpps / 384,961.9 Mbps | 288,803.4 kpps / 157,109 Mbps |
MikroTik CRS504-4XQ-IN Ethernet Test Results
| Mode | Configuration | 1518 Byte | 512 Byte | 64 Byte |
|---|---|---|---|---|
| Bridging | None (Fast Path) | 37.4 kpps / 454.2 Mbps | 82.8 kpps / 339.1 Mbps | 162.5 kpps / 83.2 Mbps |
| Bridging | 25 Bridge Filter Rules | 33.8 kpps / 410.5 Mbps | 47.8 kpps / 195.8 Mbps | 75.6 kpps / 38.7 Mbps |
| Routing | None (Fast Path) | 37.2 kpps / 451.8 Mbps | 73.3 kpps / 300.2 Mbps | 144.9 kpps / 74.2 Mbps |
| Routing | 25 Simple Queues | 36.4 kpps / 442 Mbps | 52.4 kpps / 214.6 Mbps | 54.4 kpps / 27.9 Mbps |
| Routing | 25 IP Filter Rules | 33.8 kpps / 410.5 Mbps | 41.4 kpps / 169.6 Mbps | 41.7 kpps / 21.4 Mbps |
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