10/100BASE-T SFPDell OFL-400G-QDD8xPPC Compatible 400G OSFP 8 x 50G PAM4 RHS/Flat Top to 400G QSFP-DD 8 x 50G PAM4 Passive Copper Twinax Cable
The OFL-400G-QDD8xPPC compatible series is designed for Dell hosts requiring a 400G DAC connection. Its OSFP (RHS/Flat Top) to QSFP-DD arrangement is supplied as a factory-terminated passive twinax link without separate optical modules or patch cords. Use the specifications to assess the physical assembly, then follow the exact length and part-number links when preparing a bill of materials or requesting a compatibility check.
Series Part Number: OFL-400G-QDD8xPPCHT Part Number: OFL-400G-QDD8xPPC
Product Highlights
- HT-manufactured compatible alternative for Dell OFL-400G-QDD8xPPC
- 400G aggregate connectivity at 400Gbps
- Interface configuration: OSFP (RHS/Flat Top) to QSFP-DD
- Passive DAC / Copper
- Length configurations covered: 3m (10ft)
- Conductor specification: 28AWG
- Power consumption: 0.1W (OSFP End) 0.1W (QSFP-DD End)
- Operating temperature: 0 to 70°C (32 to 158°F)
Available Lengths and Corresponding Part Numbers
The documented series configuration is 3m (10ft). Use the relevant OEM reference below together with the HT identity and required length when requesting a quotation. If another length carries a different OEM part number, it must be reviewed and ordered as that distinct configuration.
Compatible OEM Part Numbers
- OFL-400G-QDD8xPPC03
Specifications
| HT Part Number | OFL-400G-QDD8xPPC |
|---|---|
| Manufacturer | HT |
| Form Factor | OSFP (RHS/Flat Top) to QSFP-DD |
| Max. Data Rate | 400Gbps |
| Media | Copper |
| Cable Type | Passive DAC |
| Minimum Bend Radius | 40.5mm |
| Wire AWG | 28AWG |
| Cable Length Options Covered | 3m (10ft) |
| Jacket Material | PVC |
| Max. Power Consumption | 0.1W (OSFP End) 0.1W (QSFP-DD End) |
| Modulation Format | OSFP-8x 50G-PAM4QSFP-DD-8x 50G-PAM4 |
| DDM/DOM | Not Supported |
| Commercial Temperature Range | 0 to 70°C (32 to 158°F) |
| Protocols | IEEE 802.3bs, OSFP MSA, QSFP-DD MSA, CMIS 4.0 |
Applications and Deployment
A passive DAC reduces the connection to one factory-terminated electrical assembly. This is useful where low latency, low interface power and a short managed route matter more than optical reach. Cable gauge, connector construction and host port settings still influence whether the complete link operates reliably. For this series, the listed interface is OSFP (RHS/Flat Top) to QSFP-DD and the aggregate rate is 400G.
Quality Assurance and Packaging
Each assembly receives a visual connector inspection and functional link check before it is coiled and protected. Packaging is selected to avoid compressing the cable into a tight bundle, and optional rack-based labels help maintain an orderly installation when many identical interfaces are populated together. Both connector ends are inspected as part of the complete assembly, and protective packing is selected to avoid tight bends during transport and storage.
Cable Construction and Routing
For this assembly, the conductor specification is 28AWG; the jacket material is PVC; the minimum bend radius is 40.5mm; the operating temperature is 0 to 70°C (32 to 158°F); the power consumption is 0.1W (OSFP End) 0.1W (QSFP-DD End). These parameters belong in the installation review rather than being treated as catalogue trivia. Route the cable through its intended managers without tension, avoid pressure close to the connector boots and leave enough space to operate the latches. Any service loop must respect the stated bend limit.
High-Density Rack Integration
In a densely populated rack, connector access and airflow are part of the link design. Choose the shortest length that follows the managed path comfortably, avoid tight bundles around the connector housings and preserve room for latch operation. Where power consumption is listed, include every populated interface in the host thermal budget rather than assessing a single cable in isolation. For this series, keep the interface rate, DAC construction and length-specific OEM reference together throughout that review.
Ordering Information
Provide the exact part number, length, quantity and target interface density. For multi-rack projects, list each length separately and identify any preferred carton grouping. Host model and software information can be included for a compatibility review before production or dispatch. For this series, follow the corresponding length link, quote that exact OEM part number and keep different lengths on separate order lines. HT part number OFL-400G-QDD8xPPC identifies the product family; the linked page provides the final length-specific identity.
Dell Compatibility and Factory Testing
The assembly is evaluated for host recognition and stable link operation, with diagnostics checked where the interface provides them. This approach verifies more than electrical or optical continuity. Exact platform and firmware information remains valuable in high-density deployments because port mode and qualification policy can differ within the same connector family. Series-level inspection is followed by the exact length and OEM configuration selected for dispatch. Functional verification includes link establishment and diagnostic indications where the host exposes them.
Shipping and Lead Time
Standard configurations normally ship within one to three working days, with production lead times confirmed for larger quantities. International courier, air freight and sea freight are available; customer courier accounts and nominated forwarders are accepted.
Frequently Asked Questions
Is this an original Dell cable?
No. It is an HT-manufactured compatible cable for equipment that specifies OFL-400G-QDD8xPPC, not an original Dell-branded product.
Are different lengths and OEM part numbers separate products?
Yes. Where a length has its own OEM reference, follow the corresponding link above and order that exact part number on its own line. Do not substitute another length only because the connector arrangement is the same.
Does this DAC cable require separate modules at each end?
No. The connector ends and cable form one complete direct-attach assembly. The ends are not detachable standalone transceivers, and the complete product is tested together.
What information helps confirm compatibility?
Provide the equipment manufacturer and model, port type, hardware revision and software release, together with the required OEM reference, length and quantity. Breakout projects should also identify the intended lane configuration.
