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Arista Networks CAB-D-8S-200G-2M Compatible 200G QSFP-DD 8 x 25G NRZ to 8 x 25G SFP28 25G NRZ Passive Copper Breakout Cable, 2m (7ft)

Arista Networks CAB-D-8S-200G-2M Compatible 200G QSFP-DD 8 x 25G NRZ to 8 x 25G SFP28 25G NRZ Passive Copper Breakout Cable, 2m (7ft)

With a fixed 2m (7ft) cable and QSFP-DD to 8x SFP28, the CAB-D-8S-200G-2M compatible assembly simplifies 200G deployment. It is manufactured and tested by HT for Arista Networks equipment.

OEM Part Number: CAB-D-8S-200G-2MHT Part Number: CAB-D-8S-200G-2M

Product Highlights

  • Compatible alternative to Arista Networks CAB-D-8S-200G-2M
  • 200G connectivity at 200Gbps
  • Interface configuration: QSFP-DD to 8x SFP28
  • Fixed length and part number: 2m (7ft), CAB-D-8S-200G-2M
  • Cable construction: Passive Breakout DAC
  • Conductor specification: 28AWG
  • Maximum power consumption: 0.1W (QSFP-DD End)0.1W (SFP28 Per End)
  • Minimum bend radius: 22.5mm

Specifications

HT Part NumberCAB-D-8S-200G-2M
Arista Networks CompatibleCAB-D-8S-200G-2M
ManufacturerHT
Form FactorQSFP-DD to 8x SFP28
Max. Data Rate200Gbps
MediaCopper
Cable TypePassive Breakout DAC
Minimum Bend Radius22.5mm
Wire AWG28AWG
Cable Length2m (7ft)
Jacket MaterialPVC (OFNR)
Max. Power Consumption0.1W (QSFP-DD End)0.1W (SFP28 Per End)
Modulation FormatQSFP-DD-8x 25G-NRZSFP28-25G-NRZ
DDM/DOMNot Supported
Commercial TemperatureRange0 to 70°C (32 to 158°F)
ProtocolsQSFP-DD MSA, SFF-8432, IEEE 802.3bs-200GAUI-8, IEEE802.3by-25GAUI, CMIS 4.0, SFF-8472

Signal and Lane Configuration

The listed modulation format is QSFP-DD-8x 25G-NRZSFP28-25G-NRZ. Both host interfaces must be configured for the same aggregate rate and lane arrangement. A connector that fits mechanically does not by itself guarantee that the remote port supports this encoding or breakout mode.

Cable Construction and Routing

This assembly uses 28AWG conductors, PVC (OFNR) jacket, minimum bend radius 22.5mm. These mechanical characteristics affect how the cable should be dressed behind the equipment. Avoid sharp edges, excessive ties and repeated tight bends close to the connector boots.

Network and Protocol Considerations

The intended application is determined by the host interface and protocol support. Listed interface and protocol references include QSFP-DD MSA, SFF-8432, IEEE 802.3bs-200GAUI-8, IEEE802.3by-25GAUI, CMIS 4.0, SFF-8472. Confirm that the host firmware and port configuration support the same operating mode.

Breakout Port Mapping

The QSFP-DD to 8x SFP28 configuration divides the high-speed interface into multiple lower-speed connections. Verify the upstream lane assignment, downstream port speeds and breakout setting on the host before connecting the assembly. Each branch must attach to the correct remote interface.

Passive Copper Operation

A passive DAC has no separate optical conversion stage. Its low-power, low-latency operation is useful for short equipment links, but the assembly must remain within the length and signaling mode accepted by both hosts.

Length Selection and Installation Planning

CAB-D-8S-200G-2M provides 2m (7ft) for connections between separated rack units or nearby equipment positions. Plan the route around cable managers and power cords, keeping the assembly free from connector strain while avoiding a large obstruction in the airflow path.

Position Within the Length Range

CAB-D-8S-200G-2M occupies the middle of this family between CAB-D-8S-200G-1.5M at 1.5m (5ft) and CAB-D-8S-200G-2.5M at 2.5m (8ft). It adds 0.5m over the shorter option for extra routing clearance, while the next longer version adds another 0.5m. Measure the managed path and choose this version when its reach is sufficient without creating the slack associated with the longer assembly.

Power and Thermal Planning

The rated power consumption is 0.1W (QSFP-DD End)0.1W (SFP28 Per End). Include this load in the host-port power and thermal budget, especially in densely populated switches. Maintain front-panel clearance and do not bundle the cable so tightly that it obstructs airflow around the connectors.

Arista Networks Compatibility and Factory Testing

Our compatibility setup for Arista Networks CAB-D-8S-200G-2M is checked together with the physical 2m (7ft) assembly. Factory verification covers connector condition, host identification, error-free link establishment and electrical continuity, link stability and diagnostic readouts. Providing the exact host model and firmware release helps us identify platform-specific requirements before production.

Ordering Information

Use part number CAB-D-8S-200G-2M for the 2m (7ft) assembly. For mixed-length projects, list each required part number and quantity separately so that every cable can be tested and packed according to its intended installation.

Frequently Asked Questions

Is this an original Arista Networks cable?

No. It is an HT-manufactured compatible alternative for equipment that specifies Arista Networks CAB-D-8S-200G-2M.

Can I use it between different speeds or interface types?

Only when both hosts explicitly support the same data rate, lane mapping and breakout configuration. Mechanical fit alone is not proof of interoperability.

What information should I provide for a compatibility check?

Provide the host manufacturer, equipment model, port type, hardware revision and software release, together with the OEM part number and required quantity.

Does this page include more than one cable length?

No. This page is dedicated to 2m (7ft) and part number CAB-D-8S-200G-2M. Other lengths have their own part numbers and product pages.

Quality Assurance and Packaging

Quality control includes connector appearance, cable identification and functional verification. Packing materials are selected to keep the connector housings and cable boots from taking impact during transport, and the coil is not compressed into an undersized bundle. Volume orders can include customer-specific labels and packing documentation.

Shipping and Lead Time

Standard configurations normally ship within one to three working days. Worldwide courier, air freight and sea freight options are available, and shipments can also be sent on your own courier account or delivered to an appointed forwarder.

 

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