For short reach 400Gb/s links in 400G Ethernet data center and cloud network environments, the 400G QSFP-DD 8x 50G PAM4 to 4x 100G QSFP56 2x 50G PAM4 Active Breakout DAC Cable offers a factory terminated active twinax assembly with QSFP-DD to 4x QSFP56 connectors and a length of 5m. Active electronics inside the connectors extend the usable reach compared with passive copper while keeping power draw low. The cable meets QSFP-DD MSA SFF-8679 SFF-8636.
Product Highlights
- QSFP-DD to 4x QSFP56
- Data rate: 400Gb/s
- Cable type: Active Twinax
- Length: choose from 3 standard lengths, 3m (10ft) to 5m (16ft)
- Operating temperature: 0 to 70°C (32 to 158°F)
Specifications
| Part Number | QDD-400G-4QAC05 |
|---|---|
| Manufacturer | HT |
| Form Factor | QSFP-DD to 4x QSFP56 |
| Max Data Rate | 400Gb/s |
| Cable Length | 3m (10ft), 4m (13ft), 5m (16ft) |
| Cable Type | Active Twinax |
| Minimum Bend Radius | 80mm |
| Wire AWG | 28 AWG |
| Jacket Material | PVC |
| Power Consumption | ＜0.1W |
| Modulation Format | PAM4 |
| Inbuilt FEC | No |
| Operating Temperature Range | 0 to 70°C (32 to 158°F) |
| Protocols | QSFP-DD MSA SFF-8679 SFF-8636 |
Applications
The 400G QSFP-DD 8x 50G PAM4 to 4x 100G QSFP56 2x 50G PAM4 Active Breakout DAC Cable is a 400Gb/s active copper cable for QSFP-DD to 4x QSFP56 connections in 400G Ethernet data center and cloud network environments. This unit is offered in 3 standard lengths from 3m (10ft) to 5m (16ft). By fanning one port out to 4x QSFP56, it doubles or quadruples the number of endpoints served per switch port and keeps the cabling plant simple. Our factory programs the compatibility coding for your switch brand before shipment and verifies each unit on real host equipment. The link runs PAM4 modulation, which keeps it aligned with current 400G switch silicon.
Standards and Compatibility
Standards compliance covers QSFP-DD MSA SFF-8679 SFF-8636. The unit works in any equipment with a standard QSFP-DD to 4x QSFP56 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
Order this assembly under part number QDD-400G-4QAC. Available lengths are 3m (10ft), 4m (13ft) and 5m (16ft). If you need a length outside this list, our factory can build it to order. Wire gauge: 28 AWG. Volume pricing is available for project quantities.
Quality and Testing
Every unit we ship is tested in our own test bed on mainstream switch and transport platforms before packing. Our test center has been fully upgraded, which sets us apart from other third party product providers: 10G, 40G, 100G, 200G and 400G transceivers and direct attach cables are verified on the latest top brand equipment, including selected original switches that can hardly be found elsewhere.
How We Pack
Transceivers and cables are individually protected against static and dust, then consolidated into sturdy cartons suitable for international courier shipment. For larger orders we shrink-wrap and strap cartons onto pallets. Tell us your warehouse or retail requirements and we will pack accordingly.
OEM and Custom Orders
We have manufactured fiber optic connectivity products since 1995 and run our own production lines in Shenzhen. Beyond the standard catalog we build to order: special cable lengths, custom connector combinations, vendor-specific compatibility coding and private labeling. Send us your requirement and our engineers will quote a practical solution.
Worldwide Delivery
We ship to customers around the world every week. Express couriers handle most orders door to door in a few days; larger consignments go by air or sea to keep freight costs down. Tracking information is provided for every shipment, and we are flexible on shipping accounts and forwarders.