Product details
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A compact 1U 400G switch built for AI clusters, storage fabrics, and high-speed aggregation, featuring four 400G QSFP56-DD ports, dual 10 Gigabit Ethernet, and RouterOS v7. With hot-swap power supplies, robust cooling, and low power consumption, it delivers ultra-high bandwidth, wire-speed performance, and future-proof scalability at an accessible price point.
The CRS804 DDQ is a compact and reliable 400 Gigabit switch designed for modern AI workloads and next-generation network upgrades. With four 400G QSFP-DD ports and dual 1/10G Ethernet, it delivers exceptional bandwidth density in a quiet and efficient 1U form factor.
Inside, a Marvell 98DX7335 switch chip works together with a hefty quad-core 2.0 GHz ARM CPU, 4 GB of DDR4 RAM, and RouterOS v7. This provides advanced traffic control, high performance switching, and a familiar management environment trusted by users worldwide.
Specifications
| Product code | CRS804-4DDQ-hRM |
| Architecture | ARM 64bit |
| CPU | AL52400 |
| CPU core count | 4 |
| CPU nominal frequency | 2000 MHz |
| Switch chip model | 98DX7335 |
| RouterOS license | 6 |
| Operating System | RouterOS v7 |
| Size of RAM | 4 GB |
| Storage size | 512 MB |
| Storage type | NAND |
| MTBF | Approximately 200'000 hours at 25C |
| Tested ambient temperature | -10°C to 60°C |
Powering
| Number of AC inputs | 2 |
| AC input range | 100-240 |
| Frequency (Hz) | 50-60 |
| Max power consumption | 123 W |
| Max power consumption without attachments | 92 W |
| Cooling type | 2 fans |
Ethernet
| Number of 1G/2.5G/5G/10G Ethernet ports | 2 (supported: 10M/100M/1G/10G) |
| Number of 400G QSFP56-DD ports | 2 |
Peripherals
| Serial console port | RJ45 |
Other
| CPU temperature monitor | Yes |
| PCB temperature monitor | Yes |
| Voltage Monitor | Yes |
Performance Test Report
| CRS804-4DDQ-hRM | |||||||
| Mode | Configuration | 1518 byte | 512 byte | 64 byte | |||
| kpps | Mbps | kpps | Mbps | kpps | Mbps | ||
| Switching | Non blocking Layer 2 throughput | 131752.3 | 1600000.0 | 390625.0 | 1600000.0 | 810000.0 | 414720.0 |
| Switching | Non blocking Layer 2 capacity | 131752.3 | 3200000.0 | 390625.0 | 3200000.0 | 810000.0 | 829440.0 |
| Switching | Non blocking Layer 1 throughput | 131752.3 | 1621080.2 | 390625.0 | 1662500.0 | 810000.0 | 544320.0 |
| Switching | Non blocking Layer 1 capacity | 131752.3 | 3242160.4 | 390625.0 | 3325000.0 | 810000.0 | 1088640.0 |
| Routing | none (L3HW) | 130643.6 | 1586535.8 | 387536.3 | 1587348.6 | 810000.0 | 414720.0 |
| CRS804-4DDQ-hRM | AL52400 - all port test | ||||||
| Mode | Configuration | 1518 byte | 512 byte | 64 byte | |||
| kpps | Mbps | kpps | Mbps | kpps | Mbps | ||
| Bridging | none (fast path) | 2416.8 | 29349.6 | 6404.6 | 26233.2 | 9392.5 | 5109.5 |
| Bridging | 25 bridge filter rules | 1191.3 | 14467.1 | 1200.5 | 4917.2 | 1196.2 | 650.7 |
| Routing | none (fast path) | 2414.7 | 29324.1 | 6392.2 | 26182.5 | 9617.2 | 5231.8 |
| Routing | 25 simple queues | 1133.2 | 13761.6 | 1144.8 | 4689.1 | 1130.3 | 614.9 |
| Routing | 25 ip filter rules | 717.4 | 8712.1 | 711.1 | 2912.7 | 701.8 | 381.8 |
2. Max throughput is determined with 30+ second attempts with 0,1% packet loss tolerance in 64, 512, 1518 byte packet sizes
3. Test results show device maximum performance, and are reached using mentioned hardware and software configuration, different configurations most likely will result in lower results
The device is pre-installed with a licensed operating system and is ready for use without the need for a separate purchase. Free software updates are provided throughout the product lifecycle or for a minimum of five (5) years from the date of purchase.
