Cisco QDD-400-CU1M= Copper Cable
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Cisco QDD-400-CU1M= QSFP 1M Passive Copper Cable Bulk Pack Bulk

Availability: In Stock
Part Number#: QDD-400-CU1M=
List Price was: $767.44
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New Bulk Pack

Short Description:
QDD-400-CU1M= Quad Small Form-Factor Pluggable (QSFP) Passive Copper Cable 1 Meter | Made by Cisco | New Bulk Pack
Product Condition:
New Bulk Pack
Warranty provided by ALLHDD.COM:
90 Days

Understanding the Importance of 1M Cable

The Cisco QDD-400-CU1M= is a QSFP (Quad Small Form-factor Pluggable) 1M passive copper cable designed for use in high-speed data center and networking environments. QSFP cables are widely used in data centers for interconnecting network switches, routers, and servers. The QDD-400-CU1M= is designed to provide reliable, high-speed data transmission at speeds of up to 40Gbps.

Here are some reasons why understanding the importance of Cisco QDD-400-CU1M= QSFP 1M passive copper cable is important:

  • High-Speed Data Transmission: The QDD-400-CU1M= is capable of transmitting data at speeds of up to 40Gbps, which makes it ideal for use in high-speed data center and networking environments. This means that data can be transmitted quickly and efficiently, which can improve the overall performance of the network.
  • Cost-Effective: The QDD-400-CU1M= is a passive copper cable, which means it doesn't require any power or active components. This makes it more cost-effective compared to other types of cables, such as active optical cables (AOCs) or active copper cables (ACCs).
  • Easy to Install: The QDD-400-CU1M= is designed for easy installation and can be plugged directly into a QSFP port. This makes it a convenient and easy-to-use solution for connecting devices in a data center environment.
  • Reliable Performance: The QDD-400-CU1M= is designed to provide reliable performance in high-speed data center environments. It is built to withstand the rigors of a data center environment, including high temperatures and electromagnetic interference (EMI).
  • Compatibility: The QDD-400-CU1M= is designed to be compatible with a wide range of networking equipment, including Cisco switches, routers, and servers. This means that it can be used in a variety of different networking environments.

Advantages of Copper Cable

Cisco QDD-400-CU1M= is a QSFP (Quad Small Form-factor Pluggable) passive copper cable designed for use in data center and high-performance computing environments. This cable provides a reliable and cost-effective way to connect QSFP ports within racks and across adjacent racks.

Some of the advantages of using the Cisco QDD-400-CU1M= QSFP 1M Passive Copper Cable are:

  • High Speed: The QSFP 1M Passive Copper Cable can provide data transfer rates of up to 40 Gbps. This makes it suitable for high-speed applications such as data centers, cloud computing, and high-performance computing.
  • Cost-effective: Copper cables are generally more cost-effective than fiber optic cables. The QSFP 1M Passive Copper Cable is no exception, as it is a cost-effective alternative to fiber optic cables for short-distance data transmission.
  • Easy to Install: The QSFP 1M Passive Copper Cable is easy to install and does not require any special tools or expertise. Simply plug the cable into the QSFP ports of your devices, and you're good to go.
  • Reliable: The QSFP 1M Passive Copper Cable is highly reliable and can deliver high-quality data transmission even in harsh environments. This is due to its sturdy construction and high-quality materials.
  • Compatibility: The QSFP 1M Passive Copper Cable is designed to work with a wide range of Cisco devices, including switches, routers, and servers. This makes it a versatile option that can be used in a variety of different applications.
  • Energy Efficient: The QSFP 1M Passive Copper Cable is an energy-efficient solution that consumes less power than fiber optic cables. This makes it a more environmentally friendly option that can help reduce energy costs.

Maintenance & Troubleshooting of 1 Meter Passive Cable

The Cisco QDD-400-CU1M= QSFP 1M Passive Copper Cable is a high-speed data transfer cable that is used to connect networking devices such as switches, routers, and servers. Like all cables, the QDD-400-CU1M= cable requires regular maintenance to ensure its proper functioning and troubleshooting in case of any issues.


  • Regular inspection: It is important to visually inspect the cable regularly to ensure there is no damage to the connector or the cable itself. Any signs of wear or damage should be addressed immediately to prevent further damage.
  • Cleaning: The connectors should be cleaned regularly to prevent dust or debris buildup, which can interfere with the signal quality. A clean, dry, lint-free cloth or compressed air can be used to clean the connectors.
  • Proper handling: The cable should be handled carefully to prevent any damage to the connectors or the cable. It should not be bent or twisted, and the cable should be coiled properly when not in use.


  • Check connections: The first step in troubleshooting a cable issue is to check the connections. Ensure that the connectors are securely plugged in and that there is no debris or dust buildup on the connectors.
  • Swap cables: If there is still an issue, try swapping the cable with another known working cable. This can help determine if the problem is with the cable itself or with the device.
  • Test equipment: If the issue persists, test the equipment to ensure that it is functioning correctly. This can help determine if the issue is with the cable or with the device.
  • Contact support: If none of the above steps resolve the issue, it is recommended to contact the manufacturer's support team for further assistance.

General Information about this Cisco QDD-400-CU1M=

About New Bulk Pack Products

New Bulk Pack products come with clamshell boxes and do not have any manufacturer warranty. Many times manufacturers disassemble whole units to use parts or pulled from a new system. Typically, this product doesn't come with software or instructions unless indicated and no Manufacturer’s genuine warranty. You can take note these are not brand new products.

Cables - Direct Attach Cable

Direct Attach Cable, also known as the DAC cable, connects the equipment and peripherals in a data network. All the active networking equipment, including the data storage devices, switches, routers, servers, and more, will be connected and synched using the DAC cables. As far as the usage is concerned, these direct attached copper cables are getting fame in the data storage centers and the industry sector and server rooms: the reason being the cost-effective, efficient, and easier way to form the connection.

Direct Attach Copper Cables Are Terminated with Modules:

DAC cables are terminated from the manufacturer with the modules, which can easily connect the active peripheral equipment and secure an electrical connection. These modules are factory terminated and cannot be removed from the DAC cables afterward. Hence these wires possess a fixed length.

There are plenty of types and models available for the direct attach cables, including the direct, breakout, active and passive. As mentioned in the name, the direct cable can form a direct stable connection among the two peripherals, while breakout can connect one port with the four others. On the other hand, an active DAC cable will transmit signals to a little longer distance than the passive ones.

We, at ALLHDD, have got you all the range DAC cables for you to shop from! Choose from the following sub-categories: 0.5 Meter, 1 Meter, 16.4 Feet, 2 Meter, 4xC-13 Attached, 5 Meters, SFP+, 0.65 Meter, 10 Feet, 10 Meters, and 3 Meter.

DAC cables can follow longer paths:

Many of you might be wondering if the direct attach cable can transmit the data up to 10 meters or more! Yes, these cables can transfer the data to a more extended range depending on the data rate. The data rate is inversely proportional to the transmit range- the more the data rate, the less will be the range!

Direct Attach Data Cables are cost-effective!

DAC cables are more cost-effective as compared to the other ones. Using the two optical transceivers and fiber cable will not generate similar results as these DAC cables would!

Immense Reliability:

Not only are these cost-effective and can cover long range but are reliable as well! As already mentioned, the DAC cables are factory terminated with a module that plugs into the networking equipment and generates a physical connection. Apart from the secure connection, the 26 to 28 AWG Copper material makes them rugged. Therefore, surviving through the damage and cracks, DAC cables are a way to connect peripherals swiftly. You can choose from the following options 7 Meter, ProCurve, 0.65M, 1.2 Meter, 20 Meter and 30 Meter and also claim a 2.5% discount!

Why buy from ALLHDD?

ALLHDD has been serving its users for many years now! Fulfilling the needs of tech-savvies, we have got immense variety in each category. The same is true for the Direct Attach Copper Cables (DAC), which need to connect the networking peripherals.


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ALLHDD guarantees that the products will not have defects in material that will affect the product's functionality during the Standard Warranty Period. The warranty period starts when the merchandise/items from our warehouse.

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.

What is not covered by our warranty?

The reason why our warranty does not cover any problem caused by the following conditions:

(a) misuse of hardware; accidental damage; carelessness product(s) damage; shock; temperature beyond the specification of any product; faulty installation; operation; modification of goods;

(b) any misuse outside the instructions in the user manual for any specific product;

(c) damaged caused by other hardware or equipment. The warranty will void if the item is returned with physical damage, damage to the retail box, removed from the box, counterfeit labels/labelled by them, or any modifications of internal and external covers. Data loss or damages to any other equipment we do not cover by our offered warranty.

What is the Manufacturer/Brand Warranty?

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).

For the server parts (i.e., Dell, HPE) to get Full coverage of the warranty server must have a full 3- 5 years warranty. However, ALLHDD.COM will cover the warranty duration if any Manufacturer doesn't support the advertised warranty and there is no refund for those.
Final Sale items are non-returnable/refundable in any situation. Any question? please ask our team before the shipment.

Important notes:

We can provide additional warranty service/support for any product you purchase from us if you need additional warranty coverage before finalizing the order from ALLHDD.Com. You need to ask in live chat/help or call us for more information.

Individual product warranty mentioned on each item product description page/detail page.

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