Cisco QSFP-H40G-ACU10M 10M Cables Network Cables
If you need a large quantity of QSFP-H40G-ACU10M product - call us through our toll-free number at (800) 675 5044 or request a quote at live chat and our sales manager will contact you shortly.
Looking for assistance? Connect with one of our experts
+1 (800) 675 5044 (Toll-Free)
FREE Shipping. We are accepting NET 30 Days Purchase Orders. Get a decision in seconds, without affecting your credit.
4 of 9

QSFP-H40G-ACU10M Cisco 10M 40GBASE-CR4 Active Copper Cable Bulk

Availability: In Stock
Part Number#: QSFP-H40G-ACU10M
List Price was: $1858.14
Your Price:
You Save: $1059.14 (57% off)

Additional 5% Discount on Checkout

Short Description:
QSFP-H40G-ACU10M 40GBASE-CR4 10 Meter Direct-Attach Copper (DAC) Active Twinaxial Network Cable | Made by Cisco | New Bulk Pack
Product Condition:
New Bulk Pack
Warranty provided by ALLHDD.COM:
90 Days

Product overview for the Cisco QSFP-H40G-ACU10M

In the world of networking and data transmission, the QSFP-H40G-ACU10M is a critical component that plays a crucial role in ensuring high-speed data transfer. This 10-meter Direct-Attach Copper (DAC) Active Twinaxial Network Cable, often referred to simply as the QSFP-H40G-ACU10M cable, is designed to facilitate the rapid exchange of data between devices in a network. In this comprehensive guide, we will delve into the details of this cable, exploring its key features, applications, benefits, and how it contributes to efficient data transmission.

What is the QSFP-H40G-ACU10M Cable

The QSFP-H40G-ACU10M is a specific type of network cable designed to connect various networking equipment, such as switches, routers, and servers, in high-performance data centers and enterprise environments. Its name breaks down as follows:

QSFP: This stands for Quad Small Form-factor Pluggable, which refers to the type of connector used in the cable. QSFP connectors are known for their compact size and high data transmission capabilities.

H40G: This part of the name indicates that the cable is designed for 40 Gigabit Ethernet (40GbE) applications. In other words, it's capable of transferring data at a speed of 40 gigabits per second (Gbps).

ACU10M: ACU stands for Active Copper Cable, implying that this cable is an active twinaxial copper cable. The "10M" specifies the cable's length, which is 10 meters.

40GBASE-CR4: This is another way of indicating that the cable is designed for 40GbE applications. The "CR4" refers to the electrical interface, which is used for 40GbE over copper connections.

Now that we understand the name and its components, let's dive deeper into the various aspects of this cable.

Key Features of the QSFP-H40G-ACU10M Cable

The QSFP-H40G-ACU10M cable comes with several key features that make it a popular choice for high-speed networking applications:

High Data Transfer Rate: As mentioned earlier, this cable is designed for 40GbE applications, which means it can transmit data at an impressive rate of 40 gigabits per second. This high data transfer rate is essential for data centers and networks that require rapid data exchange.

Active Twinaxial Cable: The "ACU" in its name indicates that this cable is an active twinaxial cable. Active cables have built-in signal processing electronics that help maintain signal integrity over longer distances. Twinaxial cables consist of two inner conductors surrounded by insulation and a shield. This design minimizes signal interference and enhances data transmission quality.

10-Meter Length: The 10-meter length of this cable provides flexibility in network design and allows for efficient data transmission over moderate distances. It's suitable for connecting devices within the same rack or adjacent racks in a data center.

QSFP Connector: The QSFP connector is known for its compact size, which helps save space in networking equipment. Additionally, it's hot-swappable, meaning it can be plugged and unplugged without powering down the connected devices.

40GBASE-CR4 Compatibility: The cable is specifically designed for 40GBASE-CR4 applications. 40GBASE-CR4 is a standard for 40GbE over copper connections, and this cable meets its requirements for reliable data transmission.

Active Electronics: The active electronics in this cable help compensate for signal loss, ensuring that the data signal remains strong and clear even over longer distances. This is particularly important in data centers where devices may be located some distance apart.

Applications of the QSFP-H40G-ACU10M Cable

The QSFP-H40G-ACU10M cable finds applications in a wide range of networking scenarios due to its high-speed data transfer capabilities and other features. Some of its primary applications include:

Data Centers: Data centers are the nerve centers of modern businesses, housing servers, storage systems, and networking equipment. The QSFP-H40G-ACU10M cable is commonly used in data centers to connect servers to switches or routers, facilitating the fast exchange of data between various components.

High-Performance Computing (HPC): In HPC environments, where massive computational power is required, fast data transfer is essential. This cable is used to connect high-performance servers and workstations to the network, ensuring that data can flow seamlessly to support complex calculations and simulations.

Enterprise Networks: Large enterprises often require high-speed network connections to support their day-to-day operations. The QSFP-H40G-ACU10M cable can be used to connect switches and routers in enterprise networks, providing the bandwidth needed for efficient communication.

Telecommunications: Telecommunication providers use high-speed cables like the QSFP-H40G-ACU10M in their infrastructure to support the transfer of large volumes of data, including voice, video, and internet traffic.

Cloud Computing: In cloud computing environments, where virtual servers and resources are accessed remotely, the QSFP-H40G-ACU10M cable helps maintain fast and reliable connections between servers and the cloud infrastructure.

Benefits of Using the QSFP-H40G-ACU10M Cable

Choosing the QSFP-H40G-ACU10M cable for your networking needs offers several notable benefits:

High Speed: The cable's 40GbE capability ensures that data can be transferred quickly, reducing latency and improving overall network performance.

Reliability: The active electronics and twinaxial design of the cable enhance signal integrity, reducing the risk of data transmission errors or packet loss.

Flexibility: With a 10-meter length, this cable provides flexibility in network design and deployment. It's suitable for both short-range and moderate-range connections.

Compatibility: The cable is designed to meet the 40GBASE-CR4 standard, ensuring compatibility with a wide range of networking equipment and devices.

Space Savings: The compact QSFP connector helps save space in networking equipment, which can be crucial in densely populated data center environments.

Hot-Swappable: The hot-swappable nature of the QSFP connector allows for easy installation and replacement without interrupting network operations.

Cost-Effective: Considering its high data transfer rate and reliability, the QSFP-H40G-ACU10M cable provides a cost-effective solution for high-speed networking needs.

How the QSFP-H40G-ACU10M Cable Works

To understand how the QSFP-H40G-ACU10M cable works, it's essential to grasp the basics of data transmission in a network.

Data Transmission: In a network, data is transmitted in the form of electrical signals or light pulses, depending on the type of cable and equipment used. In the case of the QSFP-H40G-ACU10M cable, it transmits electrical signals.

Connector Interface: The QSFP connector at each end of the cable is connected to the respective ports

General Information about this Cisco QSFP-H40G-ACU10M

Manufacturer: Cisco

Part Number (SKU#): QSFP-H40G-ACU10M

Product Type: Direct Attach Cable

Technical Details of Cisco Direct Attach Cable

Cable Type: Twinaxial

Cable Length: 10 Meters

Connector on First End: SFF-8436 QSFP+

Connector on Second End: SFF-8436 QSFP+

Device Supported: Network Device

The Cisco QSFP-H40G-ACU10M is a direct attach cable designed for use with network devices. It is a 10-meter long cable with twinaxial wiring, featuring SFF-8436 QSFP+ connectors on both ends. This cable is intended for connecting and supporting network equipment.

Product Condition:
New Bulk Pack
Warranty provided by ALLHDD.COM:
90 Days

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.

Here, you can check more available conditions of your desired product QSFP-H40G-ACU10M 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.


Please choose your location for calculate shipping cost.


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.

Free Technical support on purchased items, our expert consultancy over the phone, by email, by live chat, or by remote login.


Shipping Options and Estimated Delivery Time

UPS Shipping Options:

FREE UPS® Ground (Free shipping to all orders for 48 states!)
Estimated delivery time: 4-7 business days

UPS 3 Day Select®
Estimated delivery time: 3 business days

UPS 2nd Day Air®
Estimated delivery time: 1-2 business days, Delivery by 10:30 AM or 2:00 PM

UPS Next Day Air® Standard Overnight
Estimated delivery time: Overnight 2-5 PM, Standard Overnight Delivery.

UPS Next Day Air® - Priority Overnight
Estimated delivery time: Overnight Delivery (Next Business Day) Delivery by 10:30 AM or 12:00 PM

UPS Next Day Air® First Overnight - Early A.M
Estimated delivery time: Overnight 8:00 AM, Early morning, overnight delivery for your time-critical shipments.

UPS® First Overnight - Saturday
Estimated delivery time: Overnight 8:30 AM – Saturday

FedEx Shipping Options:

FedEx Ground®
Estimated delivery time: (4–7 business days in the contiguous 48 states)
*For residential delivery via FedEx Ground use FedEx Home Delivery®
Estimated delivery time: 4−7 business days, based on the distance to the destination.

FedEx Express Saver®
Estimated delivery time: 3 business days (by 4:30 PM to U.S. businesses; by 8:00 PM to residences)
Available throughout all 50 states (except Hawaii and Alaska)

FedEx 2Day®
Estimated delivery time: 2 business days (by 4:30 PM to U.S. businesses; by 8:00 PM to residences)
Available throughout all 50 states

FedEx Standard Overnight®
Estimated delivery time: Next-business-day (by 4:30 PM to U.S. businesses and by 8:00 PM to residences)
Available throughout all 50 states (Hawaii is outbound only)

FedEx Priority Overnight®
Estimated delivery time: Next-business-day (by 10:30 PM to U.S. businesses, noon to most residences)
Available throughout all 50 states

FedEx First Overnight®
Estimated delivery time: Next-business-day (by 8:30 or 9 AM to most areas)
Available throughout all 50 states

Worldwide Shipping Options:

UPS®/FedEx® International Economy

Estimated delivery time: 4-7 business days

UPS®/FedEx® International Priority

Estimated delivery time: 2-4 business days

UPS®/FedEx® Ground Shipping Canada

Estimated delivery time: 5-8 business days

Important notes:

  • The processing of orders with Ground Shipping can take up to 24-48 hours. But we try to process all orders the same day.
  • We are not responsible for weather problems that may affect the delivery of goods by carriers. We cannot guarantee the exact delivery time, regardless of the carriers' claims.
  • If you have any specific delivery time requirements, please contact our customer support and someone from our customer service team will be able to help you.
  • You can estimate the shipping cost from the products detail page, also available on the checkout page
  • The shipping cost depends on box dimensions, weight, and zip/postal code
  • To get a FedEx® delivery service you need to mention it on the checkout page notebox.
  • For urgent shipments, please contact our customer service.
  • Shipping cut off 4:00 PM (Monday-Friday) and available blind drop shipment.