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Name:
QDD-400-CU2M
- Description:
- 400G Passive Cable, 2m
- Rating:
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- Brand:
- Cisco
- Condition:
- GTIN:
- 195285201645
- Warranty:
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3 - List Price:
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$1,002.00
- Price:
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$527.00
47% off
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QDD-400-CU2M
400G Passive Cable, 2m
$1,002.00
$527.00
29 in Global Warehouse
$527.00
47% off
TRUSTED, TRIED, PROVEN
QDD-400-CU2M Overview
QDD-400-CU2M is a high-performance QSFP-DD transceiver module designed for short-range, 400G Ethernet applications. It features direct attach copper twinaxial connectors that support a data rate of 400G, making it an ideal solution for data centers, enterprise networks, and telecom environments where high throughput and low latency are critical.
Engineered with a compact form factor and precise physical dimensions for seamless integration, QDD-400-CU2M supports industry-standard Ethernet protocols, ensuring reliable network connectivity across server racks and switch-to-switch links. Its short-range transmission capability and robust design make it particularly well-suited for high-density deployments in modern datacenter infrastructures.
What is the price of QDD-400-CU2M?
Lowest price of QDD-400-CU2M is $ 527.00. Shop now! Get further exclusive discounts with bulk quotation on QDD-400-CU2M
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QDD-400-CU2M Specifications
| Product Type | Transceiver |
| Form Factor | QSFP-DD |
| Data Rate | 400G |
| Connector Type | Twinaxial |
| Wavelength | N/A |
| Transmission Distance | Short-Range |
| Fiber Type | N/A |
| Max Distance | 2 meters |
| Supported Protocols | Ethernet |
| Network Interface | Ethernet |
| Power Consumption | N/A |
| Operating Temperature | 0 to 70°C |
| Storage Temperature | -40 to 85°C |
| Input Voltage | N/A |
| Compatibility | Cisco / Juniper / Huawei / Arista |
| Product Name | QDD-400-CU2M |
| Height | N/A |
| Width | N/A |
| Depth | N/A |
| Weight | N/A |
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
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|---|---|---|---|---|---|
| Compatibility | Cisco / Juniper / Huawei / Arista | Cisco, Juniper, Huawei, Arista | Cisco / Juniper / Huawei / Arista | Cisco, Juniper, Huawei, Arista | Cisco / Juniper / Huawei / Arista |
| Connector Type | LC | LC | LC | LC | Twinaxial |
| Data Rate | 100G | 2x100G | 400G | 400G | 400G |
| Depth | 1.78 inches | N/A | 1.68 inches | 2.20 inches | N/A |
| Fiber Type | Single-mode | Multi-mode | Single-mode | Multi-mode | N/A |
| Form Factor | QSFP28 | QSFP28 | QSFP-DD | QSFP-DD | QSFP-DD |
| Height | 0.67 inches | N/A | 0.80 inches | 0.44 inches | N/A |
| Input Voltage | 3.3V | 3.3V | 3.3V | 3.3V | N/A |
| Max Distance | 2000 meters | 100 meters (OM4) | 10 km | 500 meters | 2 meters |
| Network Interface | Fiber | Fiber | Ethernet | Ethernet | Ethernet |
| Operating Temperature | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C |
| Power Consumption | 6 W | 6.5W | 20 W | N/A | N/A |
| Product Name | QDD-2X100-CWDM4-S | QDD-2X100-SR4-S | QDD-400G-LR8-S | QDD-400G-DR4-S | QDD-400-CU2M |
| Product Type | Transceiver | Transceiver | Transceiver | Transceiver | Transceiver |
| Storage Temperature | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C |
| Supported Protocols | Ethernet / Fibre Channel | Ethernet | Ethernet | Ethernet, Fibre Channel | Ethernet |
| Transmission Distance | Short-Range | Short-Range | Long-Range | Short-Range | Short-Range |
| Wavelength | 1271/1291/1311/1331 nm | 850 nm | 1310 nm | N/A | N/A |
| Weight | 0.34 lbs | N/A | 0.25 lbs | 0.12 lbs | N/A |
| Width | 0.98 inches | N/A | 0.66 inches | 0.85 inches | N/A |
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Questions & Answers
Q
What is the QDD-400-CU2M 400G Passive Cable?
A
The QDD-400-CU2M is a 2 meter QSFP-DD to QSFP-DD copper direct-attach cable (DAC) designed for 400 Gbps data transmission in high-density data centers.
Q
What connectors does the QDD-400-CU2M use?
A
It features two QSFP-DD connectors with gold-plated contacts for reliable mating and low insertion loss.
Q
What is the maximum data rate of this 400G passive cable?
A
The cable supports an aggregate data rate of 400 Gbps, achieved via eight 50 Gbps differential lanes.
Q
How long is the QDD-400-CU2M cable?
A
This passive DAC is 2 meters in length, ideal for rack-to-rack or switch-to-switch connections in server rooms.
Q
What does 'passive' mean in a 400G passive cable?
A
‘Passive’ indicates the cable contains no active electronics or signal amplification, relying on copper conductors for short-reach connectivity.
Q
Which devices are compatible with the QDD-400-CU2M?
A
It is compatible with QSFP-DD ports on leading switches and routers from Cisco, Arista, Juniper, Dell, Huawei and other IEEE 802.3bs-compliant systems.
Q
Is the QDD-400-CU2M plug-and-play?
A
Yes. The cable is hot-pluggable and requires no configuration—simply insert both QSFP-DD ends into compatible ports.
Q
What operating temperature range does the cable support?
A
The QDD-400-CU2M operates reliably between 0 °C and 70 °C (32 °F to 158 °F).
Q
Does the 400G passive cable meet industry standards?
A
Yes. It complies with IEEE 802.3bs, RoHS, UL and CE requirements for safety, performance and environmental regulations.
Q
How does its power consumption compare to active cables?
A
As a passive DAC, it consumes virtually no additional power (<0.1 W), making it more energy-efficient than active cables.
Q
What are the primary use cases for the QDD-400-CU2M?
A
It is ideal for high-speed switch stacking, spine-leaf topologies, HPC clusters and storage networking within data centers.
Q
What warranty coverage is offered for the QDD-400-CU2M?
A
The cable comes with a one-year limited warranty covering manufacturing defects under normal use.
Q
How should I maintain the 400G passive cable?
A
Avoid sharp bends, keep connectors dust-free, and reseat gently; follow ESD precautions when handling.
Q
What’s the difference between passive and active 400G cables?
A
Passive DACs use only copper conductors for short distances and low power, while active cables include electronics to equalize signals for longer reach.
Q
Is the QDD-400-CU2M RoHS compliant?
A
Yes. The cable is fully RoHS-compliant, ensuring it contains no restricted hazardous substances.
