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The Black Box QSFP-H40G-CU3M-BB is a high-performance QSFP+ to QSFP+ direct attach copper (DAC) cable designed for reliable and cost-effective short-distance interconnects. With a length of 3 meters, this passive cable provides a simple, efficient, and energy-saving solution for high-bandwidth data transmission up to 40Gbps, making it ideal for data centers and enterprise networking.
Manufactured by Black Box, a globally trusted networking solutions provider, this QSFP+ cable ensures guaranteed compatibility with a wide range of QSFP+ networking equipment. It’s engineered to deliver low latency, high durability, and optimal signal integrity while being easy to deploy in tight rack configurations.
This QSFP+ DAC cable provides a cost-efficient alternative to optical transceivers for short-range connections, requiring no additional power consumption or complex configuration. Capable of supporting full 40 Gigabit Ethernet over copper, it is perfect for switch-to-switch links, storage networks, and high-speed interconnect solutions in server clusters and cloud environments. The passive design ensures low interference and seamless plug-and-play installation.
The QSFP-H40G-CU3M-BB is QSFP MSA (Multi-Source Agreement) compliant, ensuring interoperability with compliant devices from major vendors. Its robust construction guarantees long-lasting reliability, while the hot-swappable design makes it easy to integrate or replace without downtime. Designed specifically for rack-to-rack or within-rack deployments, this 3-meter DAC is an essential solution for cost-conscious enterprises that still require uncompromising bandwidth and stability.
The Black Box QSFP-H40G-CU3M-BB delivers consistent throughput and superior reliability, making it an excellent choice for data center and enterprise environments where uptime and stability are non-negotiable. Engineered with precision and tested for quality, it provides solid performance for critical networking infrastructure while reducing operating costs compared to fiber solutions.
| Specification | Details |
|---|---|
| Part Number | QSFP-H40G-CU3M-BB |
| Brand | Black Box |
| Product Type | QSFP+ Direct Attach Copper Cable |
| Form Factor | QSFP+ to QSFP+ |
| Data Rate | 40 Gbps |
| Cable Type | Passive Copper |
| Cable Length | 3 meters |
| Connector Type | QSFP+ (Quad Small Form-factor Pluggable Plus) |
| Power Consumption | Near zero (passive) |
| Compliance | QSFP MSA Compliant |
| Hot-Swappable | Yes |
| Latency | Ultra-low, passive cable design |
| Application | Switch-to-switch, server-to-switch, storage networks |
| Environment | Designed for data center and enterprise |
| Durability | High-quality copper with long lifecycle |
| Operating Temperature | 0°C to 70°C |
| Storage Temperature | -20°C to 85°C |
| Warranty | Backed by Black Box limited warranty |
| Installation | Plug-and-play, no configuration required |

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We use UPS/FedEx to ship the packages with different service levels offered by UPS/FedEx
Overnight Shipping take 1 business day
Expedited Shipping take about 2-3 business days
Ground shipping take about 3-5 business days
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Call: 469.458.9636
Email: sales@dcsupplies.net
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Black Box QSFP-H40G-CU3M-BB QSFP+ Network Cable
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