Low Power Consumption for Energy-saving
Direct attach copper is suitable for very short links and offer a cost-effective way to establish a 100-Gigabit link between QSFP-100G ports within racks and across adjacent racks.
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Network Switch 40G QSFP+ to QSFP+ Direct Attach Copper Cable, PVC, up to 7m
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Network Switch 40G QSFP+ to QSFP+ Direct Attach Copper Cable, PVC, up to 7m
$31.00
Connectivity Solutions
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Features
Easy Plug-and-Play
Our cable offers hot pluggable functionality for enhanced uptime and improved serviceability. It's compliant with the industry-standard QSFP28 MSA, ensuring compatibility across various devices and systems.
40G QSFP+ to QSFP+ Direct Attach Copper Cable (DAC), Passive, up to 7 m (23 ft)
Overview
The NS 40G QSFP+ to QSFP+ Direct Attach Copper Cable (DAC) is a low-cost, low-latency interconnect designed for short-distance 40 Gigabit Ethernet links. Built with twinax copper cable and factory-terminated QSFP+ connectors, it provides a plug-and-play alternative to optical transceivers and patch cords for in-rack and adjacent-rack deployments.
The passive version supports lengths up to 7 m (23 ft) without requiring additional power. For longer reaches, active copper versions can extend connectivity with minimal power consumption (< 1.5 W). The cable ensures stable signal integrity, consistent latency, and excellent EMI immunity for dense data center environments.
Compatible Brands
The NS 40G QSFP+ DAC is validated for use with devices from Cisco, Huawei, Juniper, Arista, Dell, Intel, Extreme, and more.
Need model-specific compatibility confirmation? [Contact Us Now] for assistance.
Key Specifications
| Specification | Details |
|---|---|
| Vendor Name | Network-Switch (NS) |
| Product Type | 40G QSFP+ to QSFP+ Direct Attach Copper Cable (DAC) |
| Data Rate | 40 Gbps |
| Cable Type | Twinax Copper, Passive/Active |
| Max Cable Distance | Passive: up to 7 m (23 ft); Active: up to 10 m (33 ft) |
| Conductor AWG Options | 30 AWG (≤ 3 m), 26 AWG (≤ 5 m), 24 AWG (≤ 7–10 m) |
| Connector Type | QSFP+ to QSFP+ with integrated latch |
| Power Consumption | Passive ≈ 0 W, Active ≤ 1.5 W |
| Temperature Range | 0 °C to 70 °C |
| Standards Compliance | QSFP+ MSA (SFF-8436), IEEE 802.3ba, RoHS |
| Applications | ToR/MoR data center links, switch-to-switch, server uplinks |
Why Choose NS 40G DAC?
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Cost-efficient: Lower cost than optical solutions.
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Ultra-low latency: Direct electrical path with no optical conversion.
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Energy-saving: Passive designs consume virtually no power.
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Proven interoperability: Tested with major vendor platforms.
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Flexible options: Passive up to 7 m (23 ft), active up to 10 m (33 ft).
Length Options
Standard stocked lengths:
1 m (3 ft), 2 m (7 ft), 3 m (10 ft), 5 m (16 ft), 7 m (23 ft)
Extended (active) lengths:
10 m (33 ft)
More Details
Quality Certifications
Do you have any question about the 40G QSFP+ to QSFP+ Direct Attach Copper Cable?
Warranty
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Original New Sealed Enterprise Hardware: 3 Years
Original New Sealed Consumer Devices: 1 Year
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If your products failed, you must contact your sales representative to verify product failure. If the problem still can't correct by remote support methods i.e. email or phone support, the RMA procedure will issue.
Refund Policy
At Network-switch.com, we aim to provide the best customer experience and ensure that your purchases meet your expectations. If for any reason you are not satisfied with your purchase, please read our return and refund policy below to understand your options.
Returns
You have the right to return products purchased from Network-switch.com under the following conditions:
- Eligibility for Return: Items can be returned within 30 days from the date of delivery, provided that the product is in its original condition, unused, and in the original packaging.
- Non-returnable Items: Certain items such as personalized or custom-made products, and items marked as non-returnable at the time of purchase, cannot be returned.
- Return Process: To initiate a return, please contact our customer support team at help@network-switch.com. You will be provided with instructions on how to return the product and obtain a return authorization number if necessary.
Refunds
- Refund Process: Once we receive your returned item and inspect it, we will process your refund to the original method of payment within 7 business days.
- Refund Conditions: Refunds will be issued for the purchase price of the item, excluding any shipping, handling, or other additional fees. If the product is returned damaged, used, or missing parts, a partial refund may be issued.
Exchanges
If you would prefer to exchange an item for a different size, color, or model, please follow the same return process. Once we receive the returned product, we will send the replacement at no additional charge, based on availability.
Shipping Costs
- Return Shipping Fees: You are responsible for paying the return shipping costs unless the item is defective, damaged, or incorrect.
- Refund for Shipping Costs: Shipping costs are non-refundable, except in the case of defective or incorrect items.
- Restocking Fees: You would be chagred about 30% of the product price when return the item, unless the item is defective, damaged, or incorrect.
Damaged or Incorrect Items
If you receive a damaged or incorrect item, please contact our customer service team within 7 days of receiving the product. We will exchange once the return is received.
Contact Us
If you have any questions or concerns about returns or refunds, please contact us at:
Email: help@network-switch.com
Before returning any products, please contact us to explain the issues you are experiencing. In many cases, we can resolve the problem through technical support, and you won't need to return the product.
If there are irreparable defects in the device, you can return it to us for repair or replacement under our twelve-month warranty. Simply reach out to us, and we will provide you with a return code, our return address, and any additional instructions.
Please do not return any items without first contacting us. We will guide you through the process, including the appropriate shipping methods.