400G QSFP-DD to 8 x 50G SFP56 Passive Copper Breakout DAC Cable

For short reach 400Gbps links in 400G Ethernet data center and cloud network environments, the 400G QSFP-DD to 8 x 50G SFP56 Passive Copper Breakout DAC Cable offers a factory terminated passive breakout dac assembly with QSFP-DD to 8x SFP56 connectors and a length of 0.5m (2ft)~3m (10ft). As a passive cable it draws essentially no power and adds no latency to the link. The cable meets QSFP-DD MSA, SFF-8432, IEEE 802.3bs-400GAUI-8, IEEE802.3cd-50GAUI-1, CMIS 4.0, SFF-8472.
Product Highlights
- QSFP-DD to 8x SFP56
- Data rate: 400Gbps
- Cable type: Passive Breakout DAC
- Length: 0.5m (2ft)~3m (10ft)
- DDM/DOM: Not Supported
Specifications
| Part Number | QDD-400G-8SPCxxx |
|---|---|
| Manufacturer | HT |
| Form Factor | QSFP-DD to 8x SFP56 |
| Max. Data Rate | 400Gbps |
| Media | Copper |
| Cable Type | Passive Breakout DAC |
| Minimum Bend Radius | 33.5~39.5mm |
| Wire AWG | 28~30AWG |
| Cable Length | 0.5m (2ft)~3m (10ft) |
| Jacket Material | PVC (OFNR) |
| Max. Power Consumption | 0.1W (QSFP-DD End) 0.1W (SFP56 Per End) |
| Modulation Format | QSFP-DD-8x 50G-PAM4 SFP56-50G-PAM4 |
| DDM/DOM | Not Supported |
| Protocols | QSFP-DD MSA, SFF-8432, IEEE 802.3bs-400GAUI-8, IEEE802.3cd-50GAUI-1, CMIS 4.0, SFF-8472 |
Applications
In 400G Ethernet data center and cloud network environments, the 400G QSFP-DD to 8 x 50G SFP56 Passive Copper Breakout DAC Cable provides a factory terminated 400Gbps link between QSFP-DD to 8x SFP56 ports. This unit is supplied at 0.5m (2ft)~3m (10ft). The breakout design lets one high speed port feed 8x SFP56, which raises port utilization and simplifies cabling in dense rows. Custom labeling, packaging and compatibility coding for specific equipment vendors are available from our factory on request.
Standards and Compatibility
Standards compliance covers QSFP-DD MSA, SFF-8432, IEEE 802.3bs-400GAUI-8, IEEE802.3cd-50GAUI-1, CMIS 4.0, SFF-8472. The unit works in any equipment with a standard QSFP-DD to 8x SFP56 interface; if your network uses a specific vendor's coding, tell us the switch model and we will program and verify it before delivery.
Ordering Information
This model is supplied at 0.5m (2ft)~3m (10ft) under part number QDD-400G-8SPCxxx. Other lengths of the same assembly can be produced on request. Wire gauge: 28~30AWG. Samples for testing can be arranged before bulk orders.
Logistics
Our warehouse keeps fast-moving transceivers and cables ready for same-week dispatch. Courier, air freight and sea freight options are all available depending on your budget and schedule, and we consolidate multiple items into one shipment whenever it saves you cost.
Our Testing Process
Production samples and every outgoing batch pass through bit-error-rate measurement, temperature verification and plug-in compatibility checks on mainstream switches and routers. Because we are the manufacturer, any issue found in testing is fed back to the production line immediately instead of being passed on to customers.
Packaging Options
Default packaging is simple and protective: sealed bag, blister tray, export carton. For OEM customers we also offer white-label packing, custom printed boxes and per-unit labeling with your own part numbers, so the goods can go straight into your sales channel.
Factory Custom Capability
Working directly with the manufacturer means no middleman limits. We support OEM and ODM projects, custom cable assemblies, alternative packaging and compatibility coding for major equipment vendors, with engineering support from the same team that designs our standard products.
400G QSFP-DD to 8 x 50G SFP56 Passive