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    Home / Products / Transceivers / Direct Attach Cables (DACs) / 40G QSFP+ Breakout DAC / 100439

    0.5M Arista Networks CAB-Q-S-0.5M Compatible 40G QSFP+ to 4x10G SFP+ Passive Direct Attach Copper Breakout Cable

    Product No: 100439
    0 Reviews
    189 Sold
    US$ 25.00
    Compatible
    Transceivers type
    136 in real-time stock, 03 Jun, 2026
    Delivered in 5 business days in the U.S.
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    Add to Cart Bulk Order Quotes 
    1. 40G QSFP+ to 4 SFP+ 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
    See more

    Specifications

    Arista Networks CAB-Q-S-0.5M Compatible 40G QSFP+ DAC Breakout Cable (0.5-meter, Passive, 40G QSFP+ to 4x10G SFP+)

     

    Cisco Arista Networks CAB-Q-S-0.5M compatible 40G QSFP+ DAC breakout cable is comprised of a Twinax copper cable terminated with a QSFP+ form factor module on one end and four SFP+ form factor modules on the other end. It is verified to interoperate with a wide range of original Arista switches, including the 7050X series (7050QX-32S), 7260X series (7260QX-64), 7300X3 series (7308X3, 7304X3), 7500R series (7516R, 7512R, 7508R, 7504R), 7500R3 series (7512R3, 7508R3, 7504R3), etc. 40G QSFP+ DAC breakout cable has the advantage of convenient installation since the structure of modules is permanently attached to each end.

     

    40G QSFP+ to 4x10G SFP+ breakout cable is suitable for very short-distance transmission. It provides a cost-effective and low power consumption solution for 40G to 10G breakout applications.

     

    Part Number QT-Q4S-PC50 Vendor Name QSFPTEK
    Connector Type 40G QSFP+ to 4x10 SFP+ Data Rate 40 Gbps
    Minimum Bend Radius 21mm Wire AWG 30AWG
    Cable Length 0.5m Cable Jacket PVC (OFNR)

     

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    Optical Transceivers Testing

    Take a look at our test program to get the reliable and high-performance optical transceivers.

    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 40-10G breakout solutions.
    • 3. Protocols
      Compliant with QSFP+ MSA, InfiniBand SDR/DDR/QDR, SFF-8436 and SFF-8431.
    • 4. Quality Certifications
      Backed by CE, FCC, ROSH, ISO9001.

    Applications

    Connection 1: 40G to 4x 10G Breakout Connectivity

    40G to 4x 10G Breakout Connectivity

    Product details

    Various Switch Tests

      

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

         

    QSPFTEK LAB All Brands Switches Show

     

    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.

                                                              

    QSFPTEK Test Rack

     

    Comprehensive Testing

     

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

                                 

    QSFPTEK Test Devices

     

           

    40G QSFP+ Cables Contrast Table

       

    Part Number QT-QSFP-PCx QT-QSFP-ACx QT-Q4S-PCx QT-QSFP-Ax QT-Q4S-Ax
    Image
    Cable Type Passive Direct Attach Copper Active Direct Attach Copper Passive Direct Attach Copper Breakout Active Optical Cable Active Optical Cable Breakout
    Max Data Rate 40Gbps 40Gbps 40Gbps 40Gbps 40Gbps
    Connector Type QSFP+ to QSFP+ QSFP+ to QSFP+ 40G QSFP+ to 4x10 SFP+ QSFP+ to QSFP+ 40G QSFP+ to 4x10 SFP+
    Wire AWG 30AWG 30AWG 30AWG / /
    Minimum Bend Radius 33mm 33mm 21mm 7.5mm 7.5mm
    Media Copper Copper Copper Optic Fiber Optic Fiber
    Jacket Material PVC (OFNR) PVC (OFNR) PVC (OFNR) LSZH LSZH

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      QT-Q4S-PCx Datasheet.pdf
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    0.5M Arista Networks CAB-Q-S-0.5M Compatible 40G QSFP+ to 4x10G SFP+ Passive Direct Attach Copper Breakout Cable

    Compatible Arista

    Transceivers type CAB-Q-S-0.5M

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    Mark

    2023-12-15
    This product works well with my switch, and I plan to buy some DWDM transceivers from QT. Excellent value fo ct works well with my switch, and I plan to buy some DWDM transceivers from QT. Excellent valur money!

    Verified Purchase

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    0.5M Arista Networks CAB-Q-S-0.5M Compatible 40G QSFP+ to 4x10G SFP+ Passive Direct Attach Copper Breakout Cable
    US$ 25.00
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    Arista
    Transceivers type
    CAB-Q-S-0.5M
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    Bulk Order Quotes
    0.5M Arista Networks CAB-Q-S-0.5M Compatible 40G QSFP+ to 4x10G SFP+ Passive Direct Attach Copper Breakout Cable

    Compatible Arista

    Transceivers type CAB-Q-S-0.5M

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