400G QSFP-DD 8x 50G PAM4 to 8x 50G SFP56 50G PAM4 Passive Breakout DAC Cable, 2m
The 400G QSFP-DD 8x 50G PAM4 to 8x 50G SFP56 50G PAM4 Passive Breakout DAC Cable, 2m is a passive breakout dac direct attach copper cable with QSFP-DD to 8x SFP56, supporting 400Gbps links over a length of 2m (7ft). As a passive cable it draws essentially no power and adds no latency to the link. It is a cost effective, low latency interconnect for 400G Ethernet, data center interconnect and 5G transport networks, and complies with 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: 6 options from 0.5m (2ft) to 3m (10ft) as standard
- 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 delivered in 6 standard lengths from 0.5m (2ft) to 3m (10ft). The breakout design lets one high speed port feed 8x SFP56, which raises port utilization and simplifies cabling in dense rows. It is interoperable with Arista Networks platforms and replaces the Arista Networks part CAB-D-8S-400G-2M directly.
Standards and Compatibility
Compliance: QSFP-DD MSA, SFF-8432, IEEE 802.3bs-400GAUI-8, IEEE802.3cd-50GAUI-1, CMIS 4.0, SFF-8472. For projects standardized on Arista Networks hardware, this product replaces the CAB-D-8S-400G-2M directly, with identical fit and function. Every unit's EEPROM coding and link behavior are verified on real host equipment in our lab, so what arrives at your site is ready to use.
Ordering Information
The ordering part number is QDD-400G-8SPC. We make this cable in 0.5m (2ft), 1m (3ft), 1.5m (5ft), 2m (7ft), 2.5m (8ft) and 3m (10ft). Special lengths outside this range can be produced to order. Wire gauge: 28AWG. Samples for testing can be arranged before bulk orders.
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.
Shipping and Lead Time
Standard products are held in stock and usually ship within one to three working days. We dispatch worldwide by DHL, UPS, FedEx, TNT or EMS, and for bulk orders we arrange air or sea freight. Shipments can also be sent collect on your own courier account or delivered to your freight forwarder.
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.
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.
