
This 2m (7ft) DAC cable is built for multi-vendor equipment requiring the QSFP-DD to 2x QSFP28-200G-DAC-2M7FT interface. The 200Gbps link uses QSFP-DD to 2x QSFP28 and is supplied as one complete tested assembly.
OEM Part Number: QSFP-DD to 2x QSFP28-200G-DAC-2M7FTHT Part Number: QSFP-DD to 2x QSFP28-200G-DAC-2M7FT
| HT Part Number | QSFP-DD to 2x QSFP28-200G-DAC-2M7FT |
|---|---|
| Manufacturer | HT |
| Form Factor | QSFP-DD to 2x QSFP28 |
| Max. Data Rate | 200Gbps |
| Media | Copper |
| Cable Type | Passive Breakout DAC |
| Minimum Bend Radius | 35mm |
| Wire AWG | 28AWG |
| Cable Length | 2m (7ft) |
| Jacket Material | PVC |
| Max. Power Consumption | 0.1W (QSFP-DD End)0.1W (QSFP28 Per End) |
| Modulation Format | QSFP-DD-8x 25G-NRZQSFP28-4x 25G-NRZ |
| DDM/DOM | Not Supported |
| Commercial TemperatureRange | 0 to 70°C (32 to 158°F) |
| Protocols | QSFP-DD MSA, SFF-8661, IEEE 802.3bs-200GAUI-8, IEEE802.3bm-CAUI-4, CMIS 4.0, SFF-8636 |
The listed modulation format is QSFP-DD-8x 25G-NRZQSFP28-4x 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.
This assembly uses 28AWG conductors, PVC jacket, minimum bend radius 35mm. 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.
The intended application is determined by the host interface and protocol support. Listed interface and protocol references include QSFP-DD MSA, SFF-8661, IEEE 802.3bs-200GAUI-8, IEEE802.3bm-CAUI-4, CMIS 4.0, SFF-8636. Confirm that the host firmware and port configuration support the same operating mode.
The QSFP-DD to 2x QSFP28 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.
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.
QSFP-DD to 2x QSFP28-200G-DAC-2M7FT 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.
QSFP-DD to 2x QSFP28-200G-DAC-2M7FT occupies the middle of this family between QSFP-DD to 2x QSFP28-200G-DAC-1M3FT at 1m (3ft) and QSFP-DD to 2x QSFP28-200G-DAC-3M10FT at 3m (10ft). It adds 1m over the shorter option for extra routing clearance, while the next longer version adds another 1m. Measure the managed path and choose this version when its reach is sufficient without creating the slack associated with the longer assembly.
The rated power consumption is 0.1W (QSFP-DD End)0.1W (QSFP28 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.
The assembly is configured for equipment that recognizes QSFP-DD to 2x QSFP28-200G-DAC-2M7FT. Before shipment, we inspect both connectors and verify identification, link establishment and electrical continuity, link stability and diagnostic readouts. Host hardware and firmware revisions can affect third-party cable acceptance, so customers can provide the equipment model and software release for a pre-order compatibility review.
Use part number QSFP-DD to 2x QSFP28-200G-DAC-2M7FT 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.
No. It is manufactured by HT under our own manufacturer identity.
No. Follow the specified minimum bend radius and route the 2m (7ft) assembly without tight folds, sharp edges or excessive cable ties.
Only when both hosts explicitly support the same data rate, lane mapping and breakout configuration. Mechanical fit alone is not proof of interoperability.
Provide the host manufacturer, equipment model, port type, hardware revision and software release, together with the OEM part number and required quantity.
Production inspection covers both physical condition and a live link check. Connector ends receive individual protection, and the completed assembly is packed without tight ties or sharp bends. For multi-length projects, cartons can be separated and labelled by OEM part number to simplify installation on site.
Stock items are generally dispatched within one to three working days after order confirmation. DHL, UPS, FedEx, TNT and EMS are available for international delivery; larger consolidated orders can move by air or sea freight. Customer courier accounts and nominated forwarders are accepted.
Please write to sales@huihongfiber.com, we will reply as soon as possible.
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