
The 400G QSFP-DD 8x 50G PAM4 to 2x 200G QSFP56 4x 50G PAM4 Breakout AOC, 5m is an active optical cable assembly with QSFP-DD to 2x QSFP56, carrying 400Gbps over Breakout AOC at 850nm. Factory terminated and tested as a complete link, it offers a lighter and more flexible alternative to discrete transceivers with patch cords for 400G Ethernet data center and cloud network environments. The standard length range runs from 1m (3ft) to 30m (98ft).
Product Highlights
- QSFP-DD to 2x QSFP56
- Data rate: 400Gbps
- Cable type: Breakout AOC
- Length: 9 factory standard lengths covering 1m (3ft) to 30m (98ft)
- Wavelength: 850nm
- DDM/DOM: Supported
Specifications
| Part Number | QDD-400G-2QAO05 |
|---|---|
| Manufacturer | HT |
| Form Factor | QSFP-DD to 2x QSFP56 |
| Max. Data Rate | 400Gbps |
| Cable Length | 1m (3ft), 2m (7ft), 3m (10ft), 5m (16ft), 7m (23ft), 10m (33ft), 15m (49ft), 20m (66ft), 30m (98ft) |
| Cable Type | Breakout AOC |
| Wavelength | 850nm |
| Minimum Bend Radius | 30mm |
| Transmitter Type | VCSEL |
| Receiver Type | PIN |
| Max. Power Consumption | 12W (QSFP-DD End) 5.5W (QSFP56 Per End) |
| Modulation Format | QSFP-DD-8x 50G-PAM4 QSFP56-4x 50G-PAM4 |
| CDR (Clock and Data Recovery) | TX & RX Built-in CDR |
| Jacket Material | OFNP |
| DDM/DOM | Supported |
| Commercial Temperature Range | 0 to 70°C (32 to 158°F) |
| Protocols | IEEE 802.3cd, IEEE 802.3bs, QSFP-DD MSA, SFF-8024, SFF-8679, SFF-8665, CMIS 4.0, OIF-CEI-04.0 |
Applications
The 400G QSFP-DD 8x 50G PAM4 to 2x 200G QSFP56 4x 50G PAM4 Breakout AOC, 5m is a 400Gbps active optical cable for QSFP-DD to 2x QSFP56 connections in 400G Ethernet data center and cloud network environments. This unit is produced in 9 standard lengths from 1m (3ft) to 30m (98ft). One port becomes 2x QSFP56, a common pattern for connecting newer aggregation ports to an installed base of lower speed equipment. 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 QSFP-DD-8x 50G-PAM4 QSFP56-4x 50G-PAM4 modulation, which keeps it aligned with current 400G switch silicon.
Standards and Compatibility
This product is designed and tested to comply with IEEE 802.3cd, IEEE 802.3bs, QSFP-DD MSA, SFF-8024, SFF-8679, SFF-8665, CMIS 4.0, OIF-CEI-04.0. It plugs into any standards-based QSFP-DD to 2x QSFP56 port, and compatibility coding for specific switch or router brands can be done in our factory before shipment.
Ordering Information
The factory part number is QDD-400G-2QAO. This cable is available in 1m (3ft), 2m (7ft), 3m (10ft), 5m (16ft), 7m (23ft), 10m (33ft), 15m (49ft), 20m (66ft) and 30m (98ft). Lengths outside the standard range are made to order in our factory. Samples for testing can be arranged before bulk orders.
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.
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.
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.
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.



