Description
Cisco QDD-400-CU1M Transceiver Module
Cisco 400G QSFP-DD Transceiver, Passive Copper Cable, 1 meter
Cisco QDD-400-CU1M Specifications
| Specification | Description |
|---|---|
| Type | 400G QSFP-DD Passive Copper Cable |
| Max Data Rate | 400Gbps |
| Media | Copper |
| Cable Type | Passive Twinax |
| Cable Length | 1 meter (3ft) |
| Wire Gauge (AWG) | 30AWG |
| Minimum Bend Radius | 33.5mm |
| Power Consumption | ≤0.1W |
| Jacket Material | PVC (OFNR) |
| Operating Temperature | 0 to 70°C (32 to 158°F) |
| Protocols | IEEE 802.3cd, QSFP-DD MSA, CMIS 4.0 |
| Applications | 400G Ethernet |
| Modulation Technology | PAM4 |
Description
The Cisco QDD-400-CU1M is a 400 Gigabit per second (Gbps) passive copper cable designed for use with Cisco QSFP-DD ports. It is a cost-effective solution for connecting Cisco switches and routers within a rack or across adjacent racks.
Here are some key points about the QDD-400-CU1M:
Passive design: This cable does not require any external power source, making it simple to use and energy-efficient.
Limited reach: Due to its passive design, the QDD-400-CU1M is ideal for short distances, typically up to 3 meters (10ft). For longer distances, active optical cables (AOCs) are recommended.
Cost-effective: Passive copper cables are generally less expensive than AOCs, making them a good choice for short-range connections.
High performance: The QDD-400-CU1M supports data rates of up to 400Gbps, making it suitable for demanding applications such as high-performance computing (HPC) and cloud networking.

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