400G QSFP-DD Direct Attach Copper Cable 30AWG Passive 5M
The 400G QSFP-DD Direct Attach Copper Cable is a 5-meter, 30AWG passive solution for high-speed, short-reach interconnects. It provides low-latency, reliable 400G connectivity with compact, plug-and-play installation, and OEM/ODM customization is available.
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Description
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Specification
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Features
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Application
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Custom Service
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FAQ
The 400G QSFP-DD Direct Attach Copper (DAC) Cable is designed for ultra-high-speed, short-reach interconnects in data centers, high-performance computing clusters, and enterprise networks. With a 5-meter length and 30AWG copper construction, this passive DAC cable provides reliable 400G connectivity between QSFP-DD ports, delivering low-latency and high-bandwidth performance.
As a passive plug-and-play solution, the cable requires no external power or configuration, offering immediate deployment and stable performance. Its compact design reduces cable bulk, improves airflow, and helps maintain an organized rack environment, making it ideal for high-density networking applications.
Engineered for short-reach 400G links, this cable ensures low insertion loss and stable signal transmission, providing a cost-effective alternative to optical transceivers for short distances. FiberMania also offers OEM/ODM customization, including custom lengths, labeling, and packaging to meet specific deployment requirements.
Featured DAC & AOC Cable Solutions
| SKU | Cable Type | Data Rate | Form Factor A | Form Factor B | Wire Type | Length |
| AOC-100GQSFP28-5 | AOC | 100G | QSFP28 | QSFP28 | OM4 Fiber Cable | 5M |
| AOC-10GSFP-10 | AOC | 10G | SFP+ | SFP+ | OM4 Fiber Cable | 10M |
| AOC-25GSFP28-3 | AOC | 25G | SFP28 | SFP28 | OM4 Fiber Cable | 3M |
| AOC-40GQSFP-10 | AOC | 40G | QSFP+ | QSFP+ | OM3 Fiber Cable | 10M |
| AOC-QSFP-10G4SFP-5 | AOC | 40G | QSFP+ | 4*SFP+ | OM3 Fiber Cable | 5M |
| AOC-QSFP28-4SFP28-3 | AOC | 100G | QSFP28 | 4×SFP28 | OM3 Fiber Cable | 3M |
| DAC-100GQSFP28-25G4SFP28-P5 | DAC | 100G | QSFP28 | 4×SFP28 | 24AWG | 5M |
| DAC-100GQSFP28-P3 | DAC | 100G | QSFP28 | QSFP28 | 26AWG | 3M |
| DAC-10GCX4-P05 | DAC | 10G | CX4 | CX4 | 28AWG | 3M |
| DAC-10GSFP-P10 | DAC | 10G | SFP+ | SFP+ | 24AWG | 10M |
| DAC-10GSFP-XFP-A10 | DAC | 10G | SFP+ | XFP | 24AWG | 10M |
| DAC-400GQSFP-P5 | DAC | 400G | QSFP-DD | QSFP-DD | 30AWG | 5M |
| DAC-40GQSFP-P07 | DAC | 40G | QSFP+ | QSFP+ | 28AWG | 7M |
| DAC-QSFP-10G4SFP-P03 | DAC | 40G | QSFP+ | 4 * SFP+ | 30AWG | 3M |
| DAC-SFP-P05 | DAC | 1.25G | SFP | SFP | 30AWG | 5M |
| Connector A | QSFP-DD |
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| Connector B | QSFP-DD |
| Cable Type | Passive DAC |
| Data Rate | 400Gbps (8×50G PAM4) |
| Length | 5 meters |
| Wire Gauge | 30AWG copper |
| Power Consumption | 0W (passive) |
| Standards | QSFP-DD MSA | SFF-8636 | IEEE 802.3cd/bs |
| Applications | ToR | switch-to-server | short-reach interconnects |
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400G QSFP-DD passive DAC cable
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30AWG copper construction for reliable high-speed transmission
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5-meter length for short-reach interconnects
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Plug-and-play, no external power required
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Low-latency, energy-efficient performance
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Compact and flexible for improved airflow and organized cabling
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Data center switch-to-switch or server interconnects
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High-performance computing clusters
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Enterprise network backbone links
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Short-reach 400G interconnects in racks and cabinets
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Storage area networks (SANs) and high-speed network aggregation
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Telecom and enterprise network environments
Customize DAC & AOC High-Speed Cable Solution
| Cable Type | Passive DAC / Active DAC (ACC) / Active Optical Cable (AOC) |
| Form Factor | SFP+ / SFP28 / QSFP+ / QSFP28 / QSFP56 / QSFP-DD / OSFP |
| Data Rate | 10G / 25G / 40G / 50G / 100G / 200G / 400G / 800G |
| Cable Length | 0.5m–15m (DAC) / 1m–100m (AOC) |
| Transmission Medium | Twinax Copper / Multimode Optical Fiber |
| Connector Compatibility | Cisco / NVIDIA / Arista / Juniper / Dell / HPE / Generic Compatible |
| Jacket Type | PVC / LSZH |
| EEPROM Coding | OEM Compatible Programming Available |
| Operating Temperature | Commercial / Industrial Grade |
Q1: What is the supported data rate of this cable?
A: It supports 400G transmission between QSFP-DD ports.
Q2: Does this cable require external power?
A: No, as a passive DAC cable, it is plug-and-play and requires no external power.
Q3: What is the cable length?
A: This model comes in a 5-meter length. Custom lengths are available via OEM/ODM services.
Q4: What is 30AWG?
A: 30AWG refers to the wire gauge, indicating a thin, flexible copper conductor suitable for short-reach high-speed links.
Q5: Can it be used for long-distance connections?
A: Passive DAC cables are intended for short-reach applications; longer distances require active DAC or optical transceivers.
Q6: Is customization available?
A: Yes, FiberMania supports OEM/ODM customization including cable length, labeling, packaging, and branding.
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