QSFP-DD to 8x 50G SFP56-400G-AOC-15M49FT 400G QSFP-DD 8 x 50G PAM4 to 8 x 50G SFP56 25G NRZ Active Optical Breakout Cable, 15m (49ft)
This QSFP-DD to 8x 50G SFP56-400G-AOC-15M49FT compatible cable gives project teams a defined 400G connection in 15m (49ft), with QSFP-DD to 8x 50G SFP56 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: QSFP-DD to 8x 50G SFP56-400G-AOC-15M49FTHT Part Number: QSFP-DD to 8x 50G SFP56-400G-AOC-15M49FT
Product Highlights
- HT-manufactured AOC assembly in 15m (49ft)
- 400G connectivity at 425Gbps (8x 53.125GGbps)
- Interface configuration: QSFP-DD to 8x 50G SFP56
- Fixed length and part number: 15m (49ft), QSFP-DD to 8x 50G SFP56-400G-AOC-15M49FT
- Cable construction: OM3
- Maximum power consumption: 10W (QSFP-DD End) 3W (SFP56 Per End)
- Minimum bend radius: 30mm
Specifications
| HT Part Number | QSFP-DD to 8x 50G SFP56-400G-AOC-15M49FT |
|---|---|
| Manufacturer | HT |
| Form Factor | QSFP-DD to 8x 50G SFP56 |
| Max. Data Rate | 425Gbps (8x 53.125GGbps) |
| Cable Length | 15m |
| Cable Type | OM3 |
| Minimum Bend Radius | 30mm |
| Max. Power Consumption | 10W (QSFP-DD End) 3W (SFP56 Per End) |
| Transmitter Type | VSCEL |
| Receiver Type | PIN |
| Modulation Format | PAM4 |
| Wavelength | 850nm |
| Jacket Material | OFNP |
| BER | 2.4E-4 |
| Inbuilt FEC | No |
| Operating Temperature Range | 0 to 70°C (32 to 158°F) |
| Protocols | QSFP-DD MSA, SFP56 MSA, IEEE 802.3cd |
Signal and Lane Configuration
The listed modulation format is 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.
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 minimum bend radius is 30mm; the stated power consumption is 10W (QSFP-DD End) 3W (SFP56 Per End); the jacket material is OFNP.
Power and Thermal Planning
The rated power consumption is 10W (QSFP-DD End) 3W (SFP56 Per 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 OFNP jacket, minimum bend radius 30mm. 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 QSFP-DD MSA, SFP56 MSA, IEEE 802.3cd. Confirm that the host firmware and port configuration support the same operating mode.
Breakout Port Mapping
The QSFP-DD to 8x 50G SFP56 configuration divides the high-speed interface into multiple lower-speed connections. Verify the upstream lane assignment, downstream port speeds and breakout setting on the host before connecting the assembly. Each branch must attach to the correct remote interface.
Integrated Optical Assembly
The optical engines and fiber are permanently integrated into this AOC. There are no detachable optical modules to clean or exchange. Handle the complete assembly by its connector housings and cable, and keep both ends matched to the same interface specification.
Length Selection and Installation Planning
The installation review for a 15m (49ft) link should include pathway length, support points, connector access and future maintenance. Route the integrated optical cable and both optical engines before attaching both ends, and avoid dragging it across connector panels. A final inspection should confirm that no latch, boot or jacket section carries unnecessary strain. Within this family, QSFP-DD to 8x 50G SFP56-400G-AOC-10M33FT is shorter at 10m (33ft), while QSFP-DD to 8x 50G SFP56-400G-AOC-20M66FT is the next longer choice at 20m (66ft); comparing those two boundaries helps avoid both tension and unnecessary slack.
Position Within the Length Range
QSFP-DD to 8x 50G SFP56-400G-AOC-15M49FT occupies the middle of this family between QSFP-DD to 8x 50G SFP56-400G-AOC-10M33FT at 10m (33ft) and QSFP-DD to 8x 50G SFP56-400G-AOC-20M66FT at 20m (66ft). It adds 5m over the shorter option for extra routing clearance, while the next longer version adds another 5m. Measure the managed path and choose this version when its reach is sufficient without creating the slack associated with the longer assembly.
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. Where supported by the host, receive activity and diagnostic indications are reviewed together with the established link.
Frequently Asked Questions
Is this an original equipment manufacturer cable?
No. It is manufactured by HT under our own manufacturer identity.
Are separate transceivers or patch leads required?
No. This is one complete direct-attach assembly. The ends are not detachable modules and should not be separated from the cable.
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.
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. Quantity and any labeling instructions should be attached specifically to QSFP-DD to 8x 50G SFP56-400G-AOC-15M49FT.
Shipping and Lead Time
Standard configurations normally ship within one to three working days, while production quantities are confirmed with the order. Worldwide courier services are available, with air or sea freight for consolidated shipments; freight-collect delivery and coordination with a customer’s logistics provider can be arranged.
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. Standard protective packing is used by default, with project documentation arranged when requested.
