Model and quantity
Include the full model, manufacturer P/N, revision and quantity.
Cisco / Direct Attach Cable
Cisco QDD-400-CU2M
Manufacturer P/N: QDD-400-CU2M
Cisco QDD-400-CU2M is a 2 m passive copper assembly joining two compatible 400G QSFP-DD ports. It provides a short-distance rack connection with host-side FEC.
- Link rate
- 400 GbE
- Assembly type
- Passive copper direct-attach cable
- Form factor
- QSFP-DD
- Cable endpoints
- QSFP-DD to QSFP-DD
Price on request
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Pricing, availability, condition, included options and warranty are confirmed in your quotation.
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CONNECTIONS & COMPATIBILITY
Cable and transceiver compatibility
Match both endpoints before selecting this cable or transceiver. Connector shape and nominal speed alone do not establish interoperability.
CONNECTS TOQualified port on the first device
QDD-400-CU2MDirect Attach Cable
USED FORQualified port on the peer device
Connection and installation requirements
- Both host platforms, port type and supported module coding
- Protocol, reach, fiber or copper medium and connector polarity
Browse the product categories above for related equipment. Confirm compatibility with your full configuration before ordering.
Technical overview
Technical specifications
Use the complete part number when reviewing options and system requirements.
| Manufacturer | Cisco |
|---|---|
| Manufacturer part number | QDD-400-CU2M |
| Product family | Cisco 400G QSFP-DD DACs |
| Link rate | 400 GbE |
| Assembly type | Passive copper direct-attach cable |
| Form factor | QSFP-DD |
| Cable endpoints | QSFP-DD to QSFP-DD |
| Cable length | 2 m |
| Maximum power consumption | 1.5 W per end |
| Pull-tab color | Brown |
| FEC location | Host platform |
PRODUCT DETAILS
Features and applications
QDD-400-CU2M — product overview
Cisco QDD-400-CU2M is a 2 m passive copper assembly joining two compatible 400G QSFP-DD ports. It provides a short-distance rack connection with host-side FEC.
Interconnect planning
Cisco QDD-400-CU2M belongs to the Cisco 400G QSFP-DD DACs range. Use the model-specific specifications above when comparing alternatives.
- Match both ends to supported 400G QSFP-DD ports and configure FEC on the hosts. Confirm the required routing distance before selecting this fixed cable length.
- Confirm the port format at both endpoints, cable length and host support for this exact assembly.
- Review any length-specific FEC requirement before selecting a port mode.
What should your quotation include?
Include QDD-400-CU2M, quantity, installation environment and destination in your enquiry. Specify the host or management platform and any supporting optics, cables, licenses or power accessories you need.
Condition, availability, supplied accessories, testing and warranty are confirmed in the quotation. A catalogue entry is not a stock confirmation.
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RELATED PRODUCTS
Related products and options
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Network cables & interconnects
Direct-attach, active optical and network interconnect assemblies. Cable length, connector format and host support are part of the selection.