Description
The AddOn QSFPDD-8SFP56-PDAC2M-AO is an MSA and TAA compliant 400GBase-CU direct attach cable designed to connect a QSFP-DD port to eight individual SFP56 ports with reliable, high-speed copper connectivity. Operating over passive Twinax cabling with a maximum reach of 2 meters, this DAC delivers 56 Gbps per lane (PAM4) signaling, ensuring optimal performance for high-bandwidth applications such as data centers, servers, switches, routers, and high-performance computing environments.
Manufactured to strict quality standards, this cable supports IEEE 802.3bj, By, and CD specifications and features I²C EEPROM communication, a pull-to-release latch design, and 360-degree EMI/EMC shielding for superior signal integrity. With RoHS compliance and a limited lifetime warranty, AddOn’s DACs provide a cost-effective, plug-and-play solution for modern network deployments demanding high reliability and performance.
| Specification | Description |
|---|---|
| Part Number | QSFPDD-8SFP56-PDAC2M-AO |
| Form Factor | QSFP-DD to 8xSFP56 |
| Cable Type | Passive Twinax Direct Attach Cable |
| Data Rate | 56 Gbps per lane (PAM4) |
| Aggregate Bandwidth | 400 Gbps |
| Reach / Length | 2 m (6.6 ft) |
| Compliance Standards | QSFP-DD MSA Rev. 3.4, SFF-8679, SFF-8636, IEEE 802.3bj/by/cd |
| Electrical Interface | 100 Ω differential impedance |
| Voltage | 3.3 V DC |
| Current (Signal Only) | 0.75 A |
| Operating Temperature | -10 °C to +60 °C |
| Cable Construction | 28 AWG, PVC Jacket, VW-1 Flammability Rating |
| EMI/EMC Shielding | 360-degree shield termination |
| Management Interface | I²C with EEPROM support |
| Latch Type | Pull-to-release |
| Applications | Servers, Switches, Routers, Data Centers, HPC |
| Certifications | RoHS-6, TAA |
| Warranty | Limited Lifetime Warranty |
Payment & Security
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Return Policy (Short Summary)
We offer a 30-day return window for most unopened, factory-sealed items.
Returns must be authorized before shipping back and must include all original packaging and accessories. Opened or used items are not returnable unless defective.
Some products—such as custom orders, special-order items, audio gear, software, and LED video walls—are non-returnable. Non-defective returns may be subject to a 20–30% restocking fee, and customers are responsible for return shipping costs.
For damaged or incorrect items, please contact us immediately.
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