QSFP-DD to QSFP-DD-800G-ACC-2.5M8FT 800G QSFP-DD 8 x 100G PAM4 Active Copper Twinax Cable, 2.5m (8ft)
The assembly listed here is the 2.5m (8ft) member of the QSFP-DD to QSFP-DD-800G-ACC-2.5M8FT product family for Generic equipment. It provides 800G ACC connectivity through QSFP-DD to QSFP-DD. Project teams can use the detailed table, related references and documentation-oriented packing information to keep each delivered cable aligned with its planned endpoints.
OEM Part Number: QSFP-DD to QSFP-DD-800G-ACC-2.5M8FTHT Part Number: QSFP-DD to QSFP-DD-800G-ACC-2.5M8FT
Product Highlights
- HT-manufactured ACC assembly in 2.5m (8ft)
- 800G connectivity at 800Gbps
- Interface configuration: QSFP-DD to QSFP-DD
- Fixed length and part number: 2.5m (8ft), QSFP-DD to QSFP-DD-800G-ACC-2.5M8FT
- Cable construction: Active DAC (ACC)
- Conductor specification: 28AWG
- Maximum power consumption: ≤1.2W
- Minimum bend radius: 40.5mm
Specifications
| HT Part Number | QSFP-DD to QSFP-DD-800G-ACC-2.5M8FT |
|---|---|
| Form Factor | QSFP-DD to QSFP-DD |
| Media | Copper |
| Max Data Rate | 800Gbps |
| Cable Type | Active DAC (ACC) |
| Cable Length | 2.5m (8ft) |
| Minimum Bend Radius | 40.5mm |
| Wire AWG | 28AWG |
| Modulation Format | PAM4 |
| Power Consumption | ≤1.2W |
| Jacket Material | PVC (OFNR) |
| Commercial Temperature | 0 to 70°C (32 to 158°F) |
| Protocols | QSFP-DD MSA Rev. 5.0, CMIS Rev 4.0, SFF 8417, IEEE 802.3ck |
| Warranty | 5 Years5 Years |
| Manufacturer | HT |
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.
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 Rev. 5.0, CMIS Rev 4.0, SFF 8417, IEEE 802.3ck. Confirm that the host firmware and port configuration support the same operating mode.
Length Selection and Installation Planning
The 2.5m (8ft) version is useful when a two-metre run would leave insufficient working slack. Before installation, check the complete horizontal and vertical path so that QSFP-DD to QSFP-DD-800G-ACC-2.5M8FT reaches both ports without tension at either connector.
Position Within the Length Range
QSFP-DD to QSFP-DD-800G-ACC-2.5M8FT is the longest of 5 verified length options in this family. Compared with QSFP-DD to QSFP-DD-800G-ACC-2M7FT at 2m (7ft), it provides 0.5m of additional reach for a longer vertical drop, a wider rack or an adjacent-cabinet route. Confirm that the complete path requires this length, because unused slack still needs supported, bend-safe storage.
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 ≤1.2W; the jacket material is PVC (OFNR).
Power and Thermal Planning
The rated power consumption is ≤1.2W. 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 (OFNR) 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.
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, link stability 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.
Does this order code cover multiple lengths?
No. QSFP-DD to QSFP-DD-800G-ACC-2.5M8FT refers here to 2.5m (8ft). Every other verified length has a separate part number and page in the length list.
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.
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. Keep QSFP-DD to QSFP-DD-800G-ACC-2.5M8FT associated with 2.5m (8ft) throughout the order and receiving record.
Shipping and Lead Time
Standard configurations normally ship within one to three working days, while production quantities are confirmed with the order. 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.
