Cisco QSFP-4X10G-AC7M= Twinaxial Cable
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Cisco QSFP-4X10G-AC7M= 7 Meter SFF-8436 QSFP+ SFP+ Twinaxial Refurbished

Availability: In Stock
Part Number#: QSFP-4X10G-AC7M=
List Price was: $660.47
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Short Description:
QSFP-4X10G-AC7M= 7 Meter Small Form Factor (SFF) -8436 Quad Small Form-Factor Pluggable Plus (QSFP+) Small Form-Factor Pluggable Plus (SFP+) Twinaxial Network Cable | Made by Cisco | Refurbished
Product Condition:
Warranty provided by ALLHDD.COM:
90 Days

Quality and Performance of QSFP+Network Cable

The QSFP-4X10G-AC7M= Cisco 23 Feet 40GBase-CR4 QSFP+ Network Cable is a high-performance cable designed for data center applications that require fast, reliable data transfer. It is a copper cable that connects QSFP+ modules for 40G Ethernet, and it supports four lanes of 10G Ethernet over a single cable. Here's a closer look at its quality and performance:


  • The QSFP-4X10G-AC7M= cable is manufactured by Cisco, a reputable brand known for producing high-quality networking equipment.
  • The cable is made of high-quality copper material, which provides excellent conductivity and helps reduce signal loss.
  • The cable is also designed with a low cross-talk, which ensures that there is minimal interference between the different channels of data transfer.
  • The QSFP-4X10G-AC7M= cable meets industry standards for quality and performance, ensuring that it will work reliably in your data center environment.


  • The QSFP-4X10G-AC7M= cable supports data transfer rates of up to 40 Gbps, which is four times faster than the 10 Gbps speed of traditional Ethernet cables.
  • The cable is backward-compatible with 10G Ethernet, which means it can support both 10G and 40G Ethernet connectivity.
  • The cable supports both short and long distances, with a maximum length of 7 meters (23 feet) for reliable data transfer over longer distances.
  • The QSFP-4X10G-AC7M= cable is hot-swappable, which means it can be replaced or installed while the system is running, minimizing downtime.

Maintenance and Troubleshooting of Twinaxial Network Cable

The QSFP-4X10G-AC7M= Cisco 23 Feet 40GBase-CR4 QSFP+ Network Cable is a high-speed data transfer cable commonly used in data centers for connecting switches, routers, and servers. It has a QSFP+ connector on one end and four 10G SFP+ connectors on the other end, making it capable of transmitting data at speeds of up to 40 Gbps over a distance of 23 feet.


To ensure the proper functioning of the QSFP-4X10G-AC7M= Cisco 23 Feet 40GBase-CR4 QSFP+ Network Cable, regular maintenance is recommended. Here are some tips for maintaining the cable:

  • Keep the cable clean: Dust and debris can accumulate on the connector and affect the signal quality. Use a clean, dry cloth to wipe the connector clean regularly.
  • Avoid bending the cable: Bending the cable beyond its minimum bend radius can damage the internal wires and affect the signal quality. Follow the manufacturer's recommended bend radius.
  • Avoid pulling or twisting the cable: Pulling or twisting the cable can damage the connectors and the internal wires. Always handle the cable with care.
  • Store the cable properly: Store the cable in a cool, dry place, away from direct sunlight and moisture. Avoid placing heavy objects on top of the cable.


If you experience connectivity issues with the QSFP-4X10G-AC7M= Cisco 23 Feet 40GBase-CR4 QSFP+ Network Cable, here are some troubleshooting tips:

  • Check the cable connections: Ensure that the cable is securely connected to both ends. Check for any loose or damaged connectors.
  • Check the cable for damage: Inspect the cable for any physical damage such as cuts, kinks, or frayed wires. Replace the cable if any damage is found.
  • Check the cable compatibility: Ensure that the cable is compatible with the devices it is connected to. Check the manufacturer's specifications for compatibility.
  • Check the network settings: Ensure that the network settings on the devices are correctly configured. Check the IP address, subnet mask, and gateway settings.
  • Test the cable: Use a cable tester to check for any signal loss or attenuation. This can help identify any issues with the cable.

Common Issues and Solutions

The QSFP-4X10G-AC7M= Cisco 23 Feet 40GBase-CR4 QSFP+ Network Cable is a high-speed network cable designed to support 40 Gigabit Ethernet (40GbE) data rates over a short distance. Here are some common issues and solutions that you may encounter while using this cable:

  • Cable length limitations: This cable is only designed to support distances of up to 7 meters (23 feet). If you try to use it over longer distances, the signal may become too weak, resulting in data loss or errors. To overcome this issue, you can use fiber optic cables, which are designed to support longer distances.
  • Compatibility issues: The QSFP-4X10G-AC7M= cable is only compatible with devices that support the 40GbE data rate and have a QSFP+ port. Before purchasing this cable, make sure that your devices are compatible with it.
  • Poor connectivity: If you experience poor connectivity, check the connectors at both ends of the cable to ensure that they are properly seated. If they are not, re-seat them and test the connection again.
  • Bent or damaged cable: If the cable is bent or damaged, it can cause signal loss or data errors. Avoid bending the cable too tightly or kinking it, and replace the cable if you notice any signs of damage.
  • Interference: This cable may be susceptible to interference from other electrical devices or cables. To reduce the risk of interference, keep the cable away from other cables and devices that may generate electromagnetic interference (EMI), such as power cables or motors.

General Information about this Cisco QSFP-4X10G-AC7M=

  • Manufacturer: Cisco
  • Part Number or SKU# QSFP-4X10G-AC7M=
  • Product Type: Twinaxial Cable

Technical Information of Cisco Twinaxial Cable

  • Cable Type: Twinaxial
  • Cable Length: 7 Meter
  • Connector on First End: SFF-8436 QSFP+
  • Connector on Second End: SFP+
  • Device Supported: Network Device
Product Condition:
Warranty provided by ALLHDD.COM:
90 Days

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.


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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?

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(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.
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