
Use this 20m (66ft) AOC cable for hosts expecting Generic QSFP-DD to QSFP-DD-800G-AOC-20M66FT and a 800G direct-attached interface. The assembly uses QSFP-DD to QSFP-DD; lane, protocol and breakout considerations are documented alongside the verified table. Every alternative length remains a separate order code with its own technical page.
OEM Part Number: QSFP-DD to QSFP-DD-800G-AOC-20M66FTHT Part Number: QSFP-DD to QSFP-DD-800G-AOC-20M66FT
| HT Part Number | QSFP-DD to QSFP-DD-800G-AOC-20M66FT |
|---|---|
| Manufacturer | HT |
| Form Factor | QSFP-DD to QSFP-DD |
| Max. Data Rate | 800Gbps |
| Cable Length | 20m (66ft) |
| Cable Type | AOC |
| Wavelength | 850nm |
| Minimum Bend Radius | 30mm |
| Transmitter Type | VCSEL |
| Receiver Type | PIN |
| Max. Power Consumption | ≤12W Per End |
| Modulation Format | 8x 100G-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 | QSFP-DD HW Specification Rev 6.3, CMIS Rev 5.0 |
The listed modulation format is 8x 100G-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.
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.
This 20m (66ft) assembly is intended for routes that shorter members of the same family cannot serve comfortably. Before ordering, document the actual pathway and the space available for service access. During installation, secure the integrated optical cable and both optical engines without compressing it into an undersized bundle or leaving its weight suspended from the ports. Within this family, QSFP-DD to QSFP-DD-800G-AOC-15M49FT is shorter at 15m (49ft), while QSFP-DD to QSFP-DD-800G-AOC-30M98FT is the next longer choice at 30m (98ft); comparing those two boundaries helps avoid both tension and unnecessary slack.
QSFP-DD to QSFP-DD-800G-AOC-20M66FT occupies the middle of this family between QSFP-DD to QSFP-DD-800G-AOC-15M49FT at 15m (49ft) and QSFP-DD to QSFP-DD-800G-AOC-30M98FT at 30m (98ft). It adds 5m over the shorter option for extra routing clearance, while the next longer version adds another 10m. Measure the managed path and choose this version when its reach is sufficient without creating the slack associated with the longer assembly.
Check three layers before deployment: the host must accept the cable identification, the port must support the stated aggregate rate, and the lane configuration must match the attached interfaces. On breakout hardware, also confirm channelization and the mapping of every branch. These checks are particularly important when similar-looking ports operate at different speeds or under different firmware settings. For this assembly, the minimum bend radius is 30mm; the stated power consumption is ≤12W Per End; the jacket material is OFNP.
The rated power consumption is ≤12W 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.
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.
The intended application is determined by the host interface and protocol support. Listed interface and protocol references include QSFP-DD HW Specification Rev 6.3, CMIS Rev 5.0. Confirm that the host firmware and port configuration support the same operating mode.
Specify the OEM part number and fixed length, then provide the intended host configuration if the link uses channelized or breakout ports. Separate part numbers should be used for separate lengths. This gives the compatibility review enough information to check both the physical assembly and the intended operating mode. This page’s fixed configuration is 20m (66ft); another length must be quoted under its corresponding part number.
The verification process combines digital identification with a live link test and diagnostic observation. Host model, hardware revision and software release are useful inputs because qualification behavior can change between platform generations; those details allow platform-specific requirements to be reviewed before the cable is packed. Where supported by the host, receive activity and diagnostic indications are reviewed together with the established link.
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.
Functional inspection covers identification, link establishment and the condition of both connector assemblies. The cable is then protected against dust and connector damage and packed without sharp bends. Labels can include the customer reference and host-platform note when requested for a controlled deployment. Standard protective packing is used by default, with project documentation arranged when requested.
No. It is manufactured by HT under our own manufacturer identity.
No. QSFP-DD to QSFP-DD-800G-AOC-20M66FT refers here to 20m (66ft). Every other verified length has a separate part number and page in the length list.
No. This is one complete direct-attach assembly. The ends are not detachable modules and should not be separated from the cable.
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.