Cisco QSFP-H40G-CU5M 5M Copper Cable
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Why QSFP-H40G-CU5M Cisco 5 Meter Direct Attach is the best?

Availability: In Stock
Part Number#: QSFP-H40G-CU5M
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Short Description:
QSFP-H40G-CU5M 5 Meter 40GBASE-CR4 Quad Small Form Factor Pluggable Plus (QSFP+) Direct Attach Passive Twinaxial Copper Cable | Made by Cisco | Refurbished

Interface Types of This Product: Twinaxial Cable 5 Meter

Product Condition:
Warranty provided by ALLHDD.COM:
90 Days
We are giving specifications below, why one should consider procuring Cisco 5 Meter Twinaxial Cable Cables features, a general overview, description, performance specification, relevant images, a competitive price infographic, and technical information about the QSFP-H40G-CU5M model with compatibility.

More Specification of Twinaxial Copper Cable

The QSFP-H40G-CU5M Cisco 5M Direct Attach Passive Copper Cable is a high-speed, passive copper cable that is used to connect devices in data centers and enterprise networks. It is designed to work with Cisco's QSFP (quad small form-factor pluggable) ports, which are used in a variety of Cisco devices such as switches, routers, and storage arrays.

This cable is a direct attach copper cable, which means that it does not use any active components such as transceivers or amplifiers. Instead, it uses passive copper conductors to transmit data between devices. This design provides a cost-effective and reliable solution for high-speed data transfer.

The part is a 40 Gigabit cable, which means that it can transmit data at speeds of up to 40 Gbps. This makes it ideal for use in high-bandwidth applications such as data center interconnects, storage area networks, and high-performance computing clusters.

The cable is 5 meters in length, which provides a convenient and flexible solution for connecting devices that are located close to each other. This allows for easy installation and maintenance, and it also provides a cost-effective solution for connecting devices within the same rack or cabinet.

High Performance for QSFP+ Twinaxial Cable

The QSFP-H40G-CU5M Cisco 5M Direct Attach Passive Copper Cable is a high-performance cable designed for use in Cisco data center and enterprise networks. It is a passive copper cable that is capable of delivering up to 40 Gbps of data transfer speeds over a distance of 5 meters.

One of the key performance benefits of the product is its ability to provide high-speed data transfer. With a data transfer rate of 40 Gbps, it is ideal for use in high-bandwidth applications such as data center interconnects, storage area networks, and high-performance computing clusters.

Another performance benefit of the part is its low latency. Because it is a direct attach cable, it eliminates the need for transceivers and other intermediate components, resulting in lower latency and faster data transfer speeds.

The product also features high reliability and durability. The cable is made of high-quality materials and is designed to withstand the rigors of data center environments. Additionally, it is tested to meet Cisco's strict quality standards, ensuring that it will perform reliably in the field.

General Compatibility

The QSFP-H40G-CU5M Cisco 5M Direct Attach Passive Copper Cable is a high-performance and compatible cable that is designed to work with Cisco QSFP (Quad Small Form-Factor Pluggable) interfaces. This cable is compatible with Cisco devices that have QSFP ports, including switch, router, and storage systems.

This cable supports 40 Gbps data transfer rates, making it ideal for use in high-speed data center and enterprise networks. It is also backward compatible with 10 Gbps and 4 Gbps data transfer rates, allowing for flexibility in network upgrades and configurations.

The product is also designed to work with Cisco's Transceiver Modules, which are compatible with a wide range of Cisco devices. This means that it can be easily integrated into existing Cisco networks without the need for additional hardware or software.

The cable is also passively cooled, which means it doesn't require an external power source and is more reliable. Additionally, the part also supports Cisco's Quality of Service (QoS) feature, which allows for the prioritization of network traffic to ensure that mission-critical applications receive the bandwidth they need.

Main Information about this Cisco QSFP-H40G-CU5M

  • Manufacturer: Cisco
  • Model Number or SKU# QSFP-H40G-CU5M
  • Product Type : Twinaxial Cable

Technical Information of 5 meter Cable

  • Cable Type: 5 Meter
  • Cable Length: 16.40 fit
  • Connector on First End: 1 x QSFP+
  • Connector on Second End: 1 x QSFP+

Features for Twinaxial Cable

  • Device Supported: Network Device
  • Device Supported: Network Module
  • Data Transfer Rate: 5 GB/s
  • Color: Gray


  • Environmentally Friendly: Yes
  • Environmental Certification: RoHS

About Refurbished Products

Refurbished products are typically refurbished by an Original Manufacturer or an affiliate of the manufacturer or 3rd party facility. This product may have minor blemishes due to normal product usage and doesn't necessarily come with documentation and software unless indicated, but has been well tested and generally has never had any defects.

Twinaxial cable (also known as Twinax cable) is similar to the coaxial cable, with the only difference being that the former has two inner conductors. These cables were not popular until after 2013, when their applications in differential signaling showed a significant increase. Twinaxial cables are used for high-speed data transfer over short distances, usually not more than 10 meters.

Twinax Cable Length and Performance

Most of these cable types are 10-gigabit Ethernet cables and are classified as either passive or active. Active Twinax cables, as the name suggests, have active electronic components that that are encased at the connector terminal to improve signal quality. This is necessary for applications that are data sensitive. A passive twinaxial cable, on the other hand, has no components and only consists of the conductor and insulation casing. Generally, longer cables are made active because of the long distance the signal has to travel, and shorter cables are passive. But that depends on the manufacturer and brand.

Twinax cables are commonly used for connecting devices through the SFP+ interface ports. They are desired for this because of the high data throughput of up to 10GBps and low latency. A Twinax cable is many times better than other cabling standards such as CAT7 and CAT6. They also draw minimal power to operate, even for active Twinax cables.

What Materials are Used in Twinax Cable?

These cables were constructed mainly from copper wires. That was before the commercial use of fiber optic cables. Currently, you can choose between Twinax copper cable or Twinax optical cable. By comparison, optical cables are better performers and are also more expensive. So, your choice will be limited to what you have on your budget.

Twinax and Coaxial, How Do They Compare?

It is possible to get confused between these two commonly used types of cables. They are very similar in many ways, but the notable difference that sets the twinaxial cable apart is the two conductors instead of one. This construction makes these cables have better signal integrity in short-range applications. When shopping, you will have to know this difference and consider other factors as well.

If you are unsure about the cable type to buy, contact the ALLHDD sales manager for support. We have technical experts ready to help you choose the best cable type and length for your applications. You can trust us for quality and excellent customer service.

Here, you can check more available conditions of your desired product QSFP-H40G-CU5M at a competitive price. We are trying our best to meet your needs on the enterprise-level computer, server, data centre, and networking hardware. You are welcome to ask our live chat or get live representative support over the phone.

Other Available Categories For - Cables - Twinaxial Cable


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What does ALLHDD.Com warranty cover?

30-days to 3 years warranty:

Replacement or refund. In the case of material defects, we will try to replace the product first. The product will be replaced before the expiration of the original warranty. For any failure of hardware, if we cannot process the replacement of the product(s)/model(s), we will refund the original selling/invoiced price. The shipping costs and sales tax, if any, are non-refundable. ALLHDD retains the right to decide whether the item(s) will process for replacement or refund.

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In general, a manufacturer's warranty service/support is a written guarantee to the buyer of a product. Its terms assure the replacement or repair of the product, if necessary, within a specified period after the purchase (2-5 years depending on the brand/manufacturer). It is typically included in the price of the product. Products are brand new and sealed and the original manufacturer box is complete with the Manufacturer's genuine warranty. For most of the brand new/retail products that come with the manual and box, exceptions may apply (i.e., Cisco, Juniper Networks).

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