400G QSFP-DD 8x 50G PAM4 to 8x 50G SFP56 50G PAM4 Passive Breakout DAC Cable

For short reach 400Gbps links in 400G Ethernet, data center interconnect and 5G transport networks, the 400G QSFP-DD 8x 50G PAM4 to 8x 50G SFP56 50G PAM4 Passive Breakout DAC Cable, 2m offers a factory terminated passive breakout dac assembly with QSFP-DD to 8x SFP56 connectors and a length of 2m (7ft). 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) to 3m (10ft), 6 standard options
- DDM/DOM: Not Supported
Specifications
| Arista Networks Compatible | CAB-D-8S-400G-2M |
|---|---|
| Manufacturer | HT |
| Form Factor | QSFP-DD to 8x SFP56 |
| Max. Data Rate | 400Gbps |
| Media | Copper |
| Cable Type | Passive Breakout DAC |
| Minimum Bend Radius | 39.5mm |
| Wire AWG | 28AWG |
| Cable Length | 0.5m (2ft), 1m (3ft), 1.5m (5ft), 2m (7ft), 2.5m (8ft), 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
The 400G QSFP-DD 8x 50G PAM4 to 8x 50G SFP56 50G PAM4 Passive Breakout DAC Cable, 2m is a 400Gbps direct attach copper cable for QSFP-DD to 8x SFP56 connections in 400G Ethernet, data center interconnect and 5G transport networks. This unit is stocked in 6 standard lengths from 0.5m (2ft) to 3m (10ft). One port becomes 8x SFP56, a common pattern for connecting newer aggregation ports to an installed base of lower speed equipment. Compatibility with Arista Networks systems is verified in our own test lab before shipment, so the unit works out of the box as an equivalent of CAB-D-8S-400G-2M.
Standards and Compatibility
This product is designed and tested to comply with QSFP-DD MSA, SFF-8432, IEEE 802.3bs-400GAUI-8, IEEE802.3cd-50GAUI-1, CMIS 4.0, SFF-8472. It is interoperable with Arista Networks equipment and serves as a direct equivalent to the Arista Networks part number CAB-D-8S-400G-2M.
Ordering Information
Order reference: part number QDD-400G-8SPC. Standard supply covers 0.5m (2ft), 1m (3ft), 1.5m (5ft), 2m (7ft), 2.5m (8ft) and 3m (10ft). Custom length production is available for project requirements. Wire gauge: 28AWG.
Package
Products are first packed into blister trays or self-sealed bags and then into cartons. Standard labels and marks are applied by default, and customized packing and labeling are available on request.
Custom-made Fiber Products
As a manufacturer serving the fiber optic industry since 1995, we have strong in-house manufacturing and design capability. From early GBIC, Xenpak and X2 modules to today's SFP, SFP+, QSFP, QSFP-DD and OSFP products, we grow together with the industry. OEM and custom-designed transceivers and cables are welcome, and our factory-direct pricing is very competitive compared with online retail stores.
How We Ship
Most orders travel by international express and arrive within days; palletized freight by air or sea is used for volume orders. If you prefer, we ship on your DHL, UPS or FedEx account, or deliver to your appointed agent in China for onward consolidation.
Quality Assurance
Before any product leaves our factory it goes through optical performance testing, compatibility verification on real switch platforms and a final visual inspection. Our in-house test lab holds a wide range of current and legacy switches from major brands, so interoperability is proven on the actual equipment your network uses rather than assumed from paper specifications.
400G QSFP-DD 8x 50G PAM4 to 8x 50G SFP56 50G PAM4 Passive Breakout DAC Cable, 2m