40G QSFP+ to 4×10G SFP+ Direct Attach Breakout Cable 30AWG Passive 10m
The 40G QSFP+ to 4×10G SFP+ Direct Attach Breakout Cable is a 10-meter, 30AWG passive solution for high-density, short-reach interconnects. It provides stable, low-latency connections and compact, plug-and-play installation, with OEM/ODM customization 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 40G QSFP+ to 4×10G SFP+ Direct Attach Breakout Cable (DAC) is designed for high-speed, short-reach interconnects in data centers, enterprise networks, and telecom environments. With a 10-meter length and 30AWG copper construction, this passive DAC cable provides reliable connectivity between a 40G QSFP+ port and four 10G SFP+ ports, enabling efficient breakout of high-bandwidth links.
This cable supports plug-and-play operation, requiring no external power or configuration. Its passive design ensures low latency and energy-efficient transmission, while the breakout structure allows a single 40G uplink to connect to multiple 10G downstream devices. The compact form factor reduces cable bulk and improves airflow, simplifying rack organization.
Ideal for high-density networking, server interconnects, and switch-to-switch connections, this breakout DAC cable maintains stable optical performance and minimizes insertion loss. FiberMania also offers OEM/ODM customization, including custom lengths, labeling, and packaging to suit 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 |
| Product Type | QSFP+ to 4×SFP+ Breakout DAC |
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| Connector A | 1× QSFP+ |
| Connector B | 4× SFP+ |
| Cable Type | Passive Copper Cable |
| Wire Gauge | 30AWG |
| Length | 10 meters |
| Data Rate | 40Gbps → 4×10Gbps |
| Compliance | SFF-8436 / SFF-8431 |
| Protocol Support | Ethernet | Fibre Channel | InfiniBand SDR/DDR |
| Operating Temp | 0°C to 70°C |
| RoHS/CE | Yes |
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40G QSFP+ to 4×10G SFP+ passive DAC breakout cable
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30AWG copper construction for reliable high-speed transmission
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10-meter length for medium-range interconnects
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Breaks out a single 40G link into four 10G connections
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Low-latency, energy-efficient, and plug-and-play design
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Compact and flexible for improved airflow and cable management
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OEM/ODM customizable for lengths, labeling, and packaging
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High-density data centers and server racks
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Switch-to-switch and switch-to-server connectivity
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Enterprise network aggregation and uplinks
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Short-reach backbone and storage network connections
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FTTH, FTTx, and high-speed enterprise environments
FiberMania offers OEM and ODM services for breakout DAC cables, including custom cable lengths, labeling, packaging, and branding to meet project-specific or network requirements.
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 function of this breakout DAC cable?
A: It splits a single 40G QSFP+ link into four 10G SFP+ connections for high-density networking.
Q2: Does it require external power?
A: No, as a passive DAC cable, it is plug-and-play without any external power.
Q3: What is the cable length?
A: This model comes in a 10-meter length. Custom lengths are available via OEM/ODM services.
Q4: What is 30AWG?
A: 30AWG refers to the wire gauge, indicating a thin and flexible copper conductor suitable for short-reach high-speed links.
Q5: Can it be used for long-distance connections?
A: Passive DAC breakout cables are intended for short-reach applications; longer distances may 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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