400G QSFP-DD 8x 50G PAM4 to 4x 100G QSFP56 2x 50G PAM4 Active Breakout DAC Cable
The 400G QSFP-DD 8x 50G PAM4 to 4x 100G QSFP56 2x 50G PAM4 Active Breakout DAC Cable provides a 400Gb/s copper connection between QSFP-DD to 4x QSFP56 ports with a cable length of 5m. Active electronics inside the connectors extend the usable reach compared with passive copper while keeping power draw low. Direct attach copper keeps both latency and power consumption to a minimum, which makes it the economical choice for 400G Ethernet data center and cloud network environments.
Product Highlights
- QSFP-DD to 4x QSFP56
- Data rate: 400Gb/s
- Cable type: Active Twinax
- Length: 3 options from 3m (10ft) to 5m (16ft) as standard
- 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 delivered 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. If your project needs a specific vendor coding or custom label, our production line handles it as a routine step before packing. 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
The ordering part number is QDD-400G-4QAC. We make this cable in 3m (10ft), 4m (13ft) and 5m (16ft). Special lengths outside this range can be produced to order. Wire gauge: 28 AWG. Samples for testing can be arranged before bulk orders.
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.
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.
Built to Your Spec
Our product line has grown with the industry for three decades, from GBIC-era modules to today's 800G and 1.6T interconnects. If the exact configuration you need is not listed, we can usually build it: custom lengths, mixed connector breakouts, OEM branding and project-specific firmware coding are all supported.
Delivery
Goods are normally sent by courier such as DHL, UPS, FedEx, TNT or EMS; air and sea freight are also available on request. Commonly used items are kept in stock for immediate shipment, and out-of-stock items are usually delivered within a few working days. We can also ship on your courier account or hand goods to your appointed forwarder.
