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by Arista
Product Line: Arista CAB-Q-4S-100G-3M
Product Type: Cable
Original price $130.00 - Original price $167.00
Original price
$130.00 - $167.00
Current price $167.00
Title: Surplus

Orders typically ship within 1-3 Business days, if you need an item to ship sooner please contact us.

Product Description

The CAB-Q-4S-100G-3M is a high-speed 100GBASE-CR4 QSFP to 4 x 25GBASE-CR SFP Twinax Copper Cable designed for efficient networking, with a cable length of 3 meters. It supports a wide range of applications with options for twin-ax passive copper cables up to 2m and active optical cables extending up to 30m, providing flexibility in connectivity. This cable operates within a temperature range of 0°C to 70°C, supports up to 10,000 ft in operating altitude, and is compatible with various form factors for seamless integration into existing network infrastructures.

Key Feature for the CAB-Q-4S-100G-3M

  • What is the maximum operating temperature for QSFP and SFP modules?
    The maximum operating case temperature for both QSFP and SFP modules is 70 degrees Celsius.
  • How do 100GBASE-CR4 QSFP to 4 x 25GBASE-CR SFP Twinax Copper Cables benefit network connectivity?
    These cables enable high-speed data transmission over short distances, offering a cost-effective solution for connecting QSFP and SFP+ ports without the need for external transceivers.
  • What sizes are available for QSFP-DD, and how do they differ?
    QSFP-DD Type 1 measures 13.5 x 18.4 x 78.3mm, while Type 2 is 13.5 x 18.4 x 93.3mm, indicating a difference in length to accommodate various networking requirements.
  • Can you explain the significance of the operating altitude for networking hardware?
    Networking hardware can operate safely at altitudes from 0 ft to 10,000 ft, ensuring reliable performance across a wide range of environmental conditions.
  • What are the dimensions of an SFP module?
    An SFP module measures 8.55 x 13.7 x 56.5mm, making it compact enough for dense installations while supporting high-speed communications.
  • Describe the range and applications of 400GE optics.
    400GE optics support data rates up to 400 Gbps, suitable for high-bandwidth connections in data centers, large enterprise networks, and carrier networks, offering increased capacity and efficiency.
  • What is the minimum storage temperature for these networking devices?
    The minimum storage temperature for these devices is -40 degrees Celsius, ensuring durability and longevity even in extreme conditions.
  • How does the 200G QSFP optics, AOCs, and cables facilitate upgrading from 100G?
    These components provide a straightforward path for network expansion, doubling the data transmission rate without the need for replacing existing infrastructure, thus optimizing investment.
  • What is the significance of relative humidity in the operation of networking hardware?
    Operating within a relative humidity range of 5% to 95% ensures that the networking hardware functions correctly without being affected by moisture or dry conditions.
  • What interoperability features do SFP+ optics offer?
    SFP+ optics support interoperability with 10GbE XFP, X2, and XENPAK pluggable form factors, allowing for versatile network configurations and upgrades without replacing existing hardware.

Product Review

The Arista CAB-Q-4S-100G-3M offers a solid solution for high-density networking, enabling efficient 100GBASE-CR4 QSFP to 4 x 25GBASE-CR SFP connections over a 3-meter twinax copper cable. However, the limitation to passive copper cables for link lengths only up to 3 meters might restrict deployment in larger data centers requiring longer cable runs. On the upside, the product supports a wide operating temperature range and high relative humidity, ensuring reliability in various environmental conditions.


The Arista CAB-Q-4S-100G-3M is a high-speed networking cable designed to facilitate efficient and scalable data transmission across a network. This product is a 100GBASE-CR4 QSFP to 4 x 25GBASE-CR SFP Twinax Copper Cable, measuring 3 meters in length. It is engineered to support short link lengths of 1m to 2m using twin-ax passive copper cables and can accommodate longer link lengths from 1m to 30m when utilizing an Active Optical Cable that comes pre-terminated for ease of use. This cable is compatible with a range of transceiver form factors, including the standard QSFP, QSFP-DD Type 1 and Type 2, and OSFP, with dimensions of 13.5 x 18.4 x 72.4mm for QSFP, 13.5 x 18.4 x 78.3mm for QSFP-DD, Type 1, 13.5 x 18.4 x 93.3mm for QSFP-DD, Type 2, and 13.0 x 22.6 x 100.4mm for OSFP. The SFP dimensions are 8.55 x 13.7 x 56.5mm, ensuring compatibility with a variety of devices and networking setups. The operating case temperature range of this cable is from 0 degrees Celsius (minimum) to 70 degrees Celsius (maximum), with a storage temperature range also between -40 degrees Celsius (minimum) to 70 degrees Celsius (maximum). It can operate in environments with relative humidity between 5% (minimum) and 95% (maximum), and at altitudes from 0 feet to 10,000 feet (maximum), ensuring reliability and performance in a wide array of environmental conditions. Key features include: - Parallel QSFP transceivers for scalable high-speed data transmission. - Support for 100G SFP-DD and DSFP cables, providing cost-effective connectivity for network interface cards (NIC). - Compatibility with a broad range of 400GE optics, including 400G-ZR optics with a pluggable line system, allowing for versatile media and interface options on a port-by-port basis. Moreover, the Arista CAB-Q-4S-100G-3M offers flexibility in upgrading network speeds from 100G to 200G using QSFP optics, Active Optical Cables (AOCs), and twin-ax cables. This capability, combined with the support for 400GE optics, enables network administrators to tailor their infrastructure to meet evolving demands without significant hardware replacements. In terms of interoperability, the cable supports SFP+ optical connections, ensuring compatibility with 10GbE XFP, X2, and XENPAK pluggable form factors. This feature is particularly beneficial for networks that integrate a variety of device types and require a flexible cabling solution that can adapt to different interface standards. The Arista CAB-Q-4S-100G-3M is an essential component for modern data centers, high-performance computing environments, and enterprise-grade networks seeking to enhance their data transmission capabilities while maintaining flexibility and reliability in their network infrastructure.


Item Number Arista CAB-Q-4S-100G-3M
Description 100GBase-CR4 QSFP to 4x25GBase-CR SFP Direct Attach Copper Cable, 3 meters
Passive Copper Cable Lengths Range from 1 to 2 meters
Pre-terminated Optical Cable Lengths From 1 meter up to 30 meters
Dual 400G Optics Range Maximum of 2 kilometers using parallel single-mode fiber
SFP Dimensions 8.55mm x 13.7mm x 56.5mm
QSFP Dimensions 13.5mm x 18.4mm x 72.4mm
QSFP-DD Type 1 Dimensions 13.5mm x 18.4mm x 78.3mm
QSFP-DD Type 2 Dimensions 13.5mm x 18.4mm x 93.3mm
OSFP Dimensions 13.0mm x 22.6mm x 100.4mm
Minimum Operating Temperature 0°C
Maximum Operating Temperature 70°C
Minimum Storage Temperature -40°C
Maximum Storage Temperature 70°C
Minimum Relative Humidity 5%
Maximum Relative Humidity 95%
Minimum Operating Altitude 0 feet
Maximum Operating Altitude 10,000 feet
QSFP Transceiver Configuration Parallel
100G SFP-DD and DSFP Solutions For economical network interface card (NIC) connections
200G QSFP Solutions Optics, AOCs, and cables for a straightforward 100G upgrade
Range of 400GE Optics Extensive selection
400G-ZR Optics Compatibility With plug-and-play line system
Media and Interface Flexibility Customizable on a per-port basis
SFP+ Optical Compatibility Interoperable with 10GbE XFP, X2, and XENPAK modules

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