OSFP (RHS/Flat Top) to QSFP-DD-400G-DAC-3M10FT 400G OSFP 8 x 50G PAM4 RHS/Flat Top to 400G QSFP-DD 8 x 50G PAM4 Passive Copper Twinax Cable, 3m (10ft)
This OSFP (RHS/Flat Top) to QSFP-DD-400G-DAC-3M10FT compatible cable gives project teams a defined 400G connection in 3m (10ft), with OSFP (RHS/Flat Top) to QSFP-DD and Generic host compatibility. Rather than treating all lengths as interchangeable, the page keeps this order code separate and links the other verified lengths for accurate schedules, labels and delivery checks.
OEM Part Number: OSFP (RHS/Flat Top) to QSFP-DD-400G-DAC-3M10FTHT Part Number: OSFP (RHS/Flat Top) to QSFP-DD-400G-DAC-3M10FT
Product Highlights
- HT-manufactured DAC assembly in 3m (10ft)
- 400G connectivity at 400Gbps
- Interface configuration: OSFP (RHS/Flat Top) to QSFP-DD
- Fixed length and part number: 3m (10ft), OSFP (RHS/Flat Top) to QSFP-DD-400G-DAC-3M10FT
- Cable construction: Passive DAC
- Conductor specification: 28AWG
- Maximum power consumption: 0.1W (OSFP End) 0.1W (QSFP-DD End)
- Minimum bend radius: 40.5mm
Specifications
| HT Part Number | OSFP (RHS/Flat Top) to QSFP-DD-400G-DAC-3M10FT |
|---|---|
| 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 | 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 |
Signal and Lane Configuration
The listed modulation format is OSFP-8x 50G-PAM4QSFP-DD-8x 50G-PAM4. Both host interfaces must be configured for the same aggregate rate and lane arrangement. A connector that fits mechanically does not by itself guarantee that the remote port supports this encoding or breakout mode.
Passive Copper Operation
A passive DAC has no separate optical conversion stage. Its low-power, low-latency operation is useful for short equipment links, but the assembly must remain within the length and signaling mode accepted by both hosts.
Length Selection and Installation Planning
At 3m (10ft), this assembly can bridge non-aligned ports or adjacent racks while remaining a single direct-attach link. Support longer horizontal runs with suitable cable management and preserve space for cooling and future maintenance.
Project Documentation and Cable Identification
Large deployments are easier to audit when the order code, physical length and endpoint record agree. Keep the OEM reference in the compatibility document and use the HT part number on the packing list. Where several lengths arrive together, labels and carton groups can be arranged by rack or port plan so installers do not have to identify cables by appearance alone. For this assembly, the listed conductor specification is 28AWG; the minimum bend radius is 40.5mm; the stated power consumption is 0.1W (OSFP End) 0.1W (QSFP-DD End); the jacket material is PVC.
Power and Thermal Planning
The rated power consumption is 0.1W (OSFP End) 0.1W (QSFP-DD End). Include this load in the host-port power and thermal budget, especially in densely populated switches. Maintain front-panel clearance and do not bundle the cable so tightly that it obstructs airflow around the connectors.
Cable Construction and Routing
This assembly uses 28AWG conductors, PVC jacket, minimum bend radius 40.5mm. These mechanical characteristics affect how the cable should be dressed behind the equipment. Avoid sharp edges, excessive ties and repeated tight bends close to the connector boots.
Network and Protocol Considerations
The intended application is determined by the host interface and protocol support. Listed interface and protocol references include IEEE 802.3bs, OSFP MSA, QSFP-DD MSA, CMIS 4.0. Confirm that the host firmware and port configuration support the same operating mode.
Generic Compatibility and Factory Testing
Factory verification links the compatibility identity to the exact physical assembly described on this page. Identification, connector condition and live link behavior are checked before packing. Customers can submit equipment and firmware details with the project documentation for a more specific pre-order compatibility review. The check includes link stability and diagnostic indications, followed by a final inspection of both ends.
Frequently Asked Questions
Is this an original equipment manufacturer cable?
No. It is manufactured by HT under our own manufacturer identity.
Can excess cable be folded into a compact bundle?
No. Use a supported, bend-safe service loop and observe the listed minimum bend radius. Do not crease the cable or tighten ties around the connector boots.
Will any matching connector operate at the same speed?
Not necessarily. Both hosts must support the stated rate, identification, lane mapping and any required breakout configuration; mechanical compatibility alone is insufficient.
What details assist a compatibility review?
Provide the equipment manufacturer, model, port type, hardware revision and software release, together with the OEM reference, required length and quantity.
Ordering Information
Use the listed HT part number for ordering and retain the OEM reference as the host-compatibility cross-reference. Send quantities by length, along with any rack-based packing or label instructions. If the project has mixed equipment, include the host model for each group rather than relying only on the aggregate cable rate. This page’s fixed configuration is 3m (10ft); another length must be quoted under its corresponding part number.
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. International express, air cargo and sea freight can be selected according to destination and carton volume; customer courier accounts and nominated forwarders are also accepted.
Quality Assurance and Packaging
Inspection and link testing are completed before the cable enters its protective packaging. Project orders can be packed and labelled by length, rack or customer reference, with packing documentation that makes received quantities straightforward to reconcile against the installation schedule. Volume orders can include customer references on the labels and carton list.
