5m (16ft) NVIDIA/Mellanox QDD-400G-AC05 Compatible 400G QSFP-DD 8 x 50G PAM4 Ethernet Active Copper Twinax Cable
This page gives procurement and network teams a precise reference for NVIDIA/Mellanox QDD-400G-AC05: a 400G ACC assembly in a fixed 5m (16ft) configuration. The QSFP-DD interface, HT ordering identity and verified specifications are presented together so the required cable can be matched to the bill of materials without confusing it with another length.
OEM Part Number: QDD-400G-AC05HT Part Number: QDD-400G-AC
Product Highlights
- 400G ACC direct-attach assembly
- Exact cable length: 5m (16ft)
- QSFP-DD interface configuration
- Copper cable media
- Prepared for hosts requiring NVIDIA/Mellanox QDD-400G-AC05
Specifications
| Part Number | QDD-400G-AC05 |
|---|---|
| Form Factor | QSFP-DD |
| Max. Data Rate | 425Gbps |
| Media | Copper |
| Cable Type | Active Twinax |
| Cable Length | 5m (16ft) |
| Wire AWG | 28AWG |
| Minimum Bend Radius | 80mm |
| Max. Power Consumption | 2.5W Per End |
| Jacket Material | PVC |
| Commercial Temperature Range | 0 to 70°C (32 to 158°F) |
| Protocols | QSFP-DD MSA, SFF-8636 |
| OEM Part Number | QDD-400G-AC05 |
| Host Compatibility | NVIDIA/Mellanox |
| Manufacturer | HT |
Exact Length and Product Identity
This product page covers QDD-400G-AC05 in 5m (16ft). The OEM reference, physical length and HT factory configuration should remain together on the purchase order and receiving record. Other reaches or compatibility identities must be selected and verified separately rather than assumed to be interchangeable.
Cable Construction and Installation Planning
This 5m (16ft) active copper assembly connects compatible QSFP-DD ports without separate optical modules. Confirm the aggregate rate, lane configuration and host operating mode before installation. Support the complete twinax run, preserve connector access and do not crease the cable or force it into a tight service loop.
Procurement and Port-Mapping Review
A useful purchase order should identify the host platform, the expected OEM code and the exact cable length as separate pieces of information. This prevents a physically similar assembly from being substituted when the port identification or reach is different. For mixed-length installations, prepare one order line per part number and reconcile each delivered cable with its intended pair of ports.
NVIDIA/Mellanox Compatibility and Factory Testing
Our procurement-oriented compatibility check begins with the OEM reference and ends with a live host link. We record the physical length separately from the identification configuration, so the cable supplied for this page remains the stated version rather than a generic length substitute. Factory acceptance covers both connector housings, host identification, live-link stability and diagnostic indications where the platform exposes them. The assembly is checked as the exact active copper configuration and length listed here.
Ordering Information
For a clear bill of materials, quote the OEM reference, HT part number, length and quantity on the same line. Add the switch or server model and software release when a pre-order review is required; project labels can repeat those details for receiving and installation teams. This page describes QDD-400G-AC05 in 5m (16ft); quote this exact reference and length together with quantity and the intended host platform.
Quality Assurance and Packaging
Before packing, the assembly is checked for connector condition, identification and link operation. Cables for multi-line orders can be labelled and grouped by part number, making it easier to match each length to the procurement record without opening every protective bag.
Shipping and Lead Time
Available stock is generally dispatched within one to three working days after order confirmation, with production lead times advised for larger quantities. Delivery can be arranged by courier, air freight or sea freight, and goods may instead be handed to an appointed forwarder or shipped on the customer’s courier account.