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Home/ Transceivers / Direct Attach Cables (DACs) / 40G QSFP+ DAC

2M Arista CAB-Q-Q-2M Compatible 40G QSFP+ Passive Direct Attach Copper Cable

Product No :100473
US$ 21.00  US$ 26.00
Compatible
Transceivers type
10 in stock
Delivered in 5 business days in the U.S.
Bulk Order Quotes Shop Online 
1. 40G QSFP+ to QSFP+ Connetor
2. Low Latency and Power Consumption
3. Compatible with 200+ Vendors
4. Applied in 40G Ethernet Hub, Switches, Routers and Servers, etc.
5. QSFP+ MSA Compliant
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Specifications

Cisco QSFP-H40G-CU2M Compatible 40G QSFP+ DAC Twinax Copper Cable (2 meters, Passive, QSFP+ to QSFP+)

 

The 40G QSFP+ passive copper direct-attach cable (DAC) is Cisco QSFP-H40G-CU2M fully compatible. It is a Twinax copper cable with fixed QSFP+ form factor modules terminated on both ends. Given that the QSFP+ is pre-attached to each end, the 40G DAC cable features convenient installation.

 

QSFP+ to QSFP+ 40G DAC cable is suitable for very short-distance transmission. It provides a cost-effective and low-power consumption way to build a 40Gb link between QSFP ports of switches or routers with racks and across adjacent racks.

 

Part Number QT-QSFP-PC2 Vendor Name QSFPTEK
Connector Type QSFP+ to QSFP+ Data Rate 40 Gbps
Minimum Bend Radius 33mm Wire AWG 30AWG
Cable Length 2m Cable Jacket PVC (OFNR)

 

Quality Certifications

Features

  • 1. High Reliablility and Best Price
    Proudly self-producing and rigorous testing, QSFPTEK is dedicated to delivering cost-effective products with high reliability and performance at trade price.
  • 2. Wide Application Scenarios
    Ideal for ToR, adjacent racks and short-range server-to-switch connections.
  • 3. Protocols
    Compliant with QSFP+ MSA, InfiniBand SDR/DDR/QDR, IEEE802.3ba and SFF-8436.
  • 4. Quality Certifications
    Backed by CE, FCC, ROSH, ISO9001.

Applications

40G QSFP+ to QSFP+ DAC Cable Interconnection Solution

 

Product details

Various Switch Tests

 

Every module is quality tested for compatibility in the multi-brand switches environment, which guarantees flawless operations.

 

transceiver compatibility tests

 

 

Tested in The Host Device to Prove Interoperability

 

Every unit sold undergoes rigorous quality testing, to ensure compatibility in the target switch environment, guaranteeing perfect operation.

 

 

 

Comprehensive Testing

 

Every module is qualified through rigorous procedures and advanced equipment to ensure high-quality and reliable optical devices for you.

 

 

Questions & Answers

more+
  • What's the difference of passive and active DACs?
    The active DAC has longer transmission distance which can reach 12m, while the passive DAC supports transmission within 10m.
  • Can I have different compatibilities for each end of my direct attach cables?
    Yes, QSFPTEK offers customized dual compatibility solutions for direct attach cables so that you can choose compatibilities for each end individually. Just contact your sales rep. for detailed compatible customization on dual ends.
  • Why should I trust QSFPTEK compatible direct attach cables?
    Exceting the price advantage we have compared to branded cables, QSFPTEK DACs also maintain the same performance and reliability. To satisfy our customers' needs of high performance, all of our DACs are tested multiple times in mainstream original brand switches in our test center before shipped out. What's more, using compatible optics in brand devices will not negatively affect manufacturers' warranty if that's your concern.
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Customer Reviews

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Total score

(14 Reviews)

5 stars

14 Reviews

4 stars

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1 stars

0 Reviews

  • Daniel Holt United States of America
    2023-03-21

    Compared to other high-speed networking technologies such as optical fiber, 40G DAC cables are generally more cost-effective, making them an attractive option for organizations that need high-speed connectivity but have budget constraints.

    Transceivers typeQSFP-H40G-CU50CM

    CompatibleCisco

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  • Yedda Faraday United States of America
    2023-02-28

    These are some solid cables! I used it to test my switch and it worked great, will definitely buy again if I need more.

    Transceivers typeQSFP-H40G-CU1M

    CompatibleCisco

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  • Yves Nahum United States of America
    2023-02-24

    I really need this cable now and hate every time I plug it in, the DAC saves me a lot of time and improves stability.

    Transceivers typeQSFP-H40G-CU1M

    CompatibleCisco

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  • Noel Robinson United States of America
    2023-01-05

    The quality far exceeds the price, and it is a good choice for technicians on a budget.

    Transceivers typeQSFP-H40G-CU50CM

    CompatibleCisco

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  • Baldwin Silas United States of America
    2022-12-23

    Looks like it's made of high quality material and works great with my huawei switch. Great cable for such a cheap price, well worth it!

    Transceivers typeQSFP-H40G-CU1M

    CompatibleCisco

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  • Truda Hamlet United States of America
    2022-12-07

    Good price and product quality. Reliable delivery, would buy again.

    Transceivers typeQSFP-H40G-CU50CM

    CompatibleCisco

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  • Kerr Joyce United States of America
    2022-12-01

    As soon as I got it, I felt that the quality was great, very heavy, and the materials used were very good, and there were no problems in the process of using it.

    Transceivers typeQSFP-H40G-CU50CM

    CompatibleCisco

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  • Tom Burns United States of America
    2022-11-09

    Better cables than buying direct from arista, I always look for AOC or DAC cables here first, Great

    Transceivers typeQSFP-H40G-CU1M

    CompatibleCisco

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  • Jacqueline R United States of America
    2022-10-27

    Just as advertised, they plugin, they work, and data flows. Great price too.

    Transceivers typeQSFP-H40G-CU1M

    CompatibleCisco

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  • Jacqueline R United States of America
    2022-10-27

    Seems to be made of good quality materials and it works just fine with my Cisco switch. The exterior looks similar to those of expensive competitors and is well worth buying.

    Transceivers typeQSFP-H40G-CU1M

    CompatibleCisco

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Datasheet

  • QT-QSFP-PCx.pdf

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2M Arista CAB-Q-Q-2M Compatible 40G QSFP+ Passive Direct Attach Copper Cable

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Transceivers type CAB-Q-Q-2M

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