With the rapid development of artificial intelligence, high-performance computing, and cloud services, data center bandwidth demands continue to rise. Following the gradual large‑scale deployment of 800G, 1.6T has become a key evolutionary step for next‑generation data center architectures. In short‑distance high‑speed interconnect scenarios within and between racks, how to effectively control power consumption and cost while increasing bandwidth has become a major industry concern. Against this backdrop, we are pleased to introduce our 1.6T OSFP224 High‑Speed Direct Attach Copper (DAC) cable series.
I. Product Overview
The 1.6T OSFP224 DAC is a high‑speed passive copper cable assembly in the OSFP (Octal Small Form Factor Pluggable) form factor. Based on 224Gbps per‑lane electrical interface technology, it achieves an aggregate throughput of 1.6Tbps through 8 parallel lanes.
The product fully complies with international standards such as 1.6T Ethernet (IEEE 802.3dj) and InfiniBand XDR, enabling seamless connectivity with next‑generation switches, servers, and GPU computing clusters.
II. Product Specifications
| Parameter | Specification |
|---|---|
| Form Factor | OSFP224 |
| Total Data Rate | 1.6Tbps (1600Gbps) |
| Per‑Lane Data Rate | 224Gbps |
| Modulation | 8x 200G‑PAM4 |
| Wire Gauge | 26 AWG |
| Maximum Power Consumption | < 0.1W |
| Operating Voltage | 3.3V |
| Operating Temperature | 0°C to 70°C |
| Heatsink Type | IHS (Integrated Heatsink) / RHS (without heatsink) |
III. Key Advantages
1. Significant Cost Benefits
The procurement cost is approximately one‑third that of a comparable 1.6T AOC active optical cable, greatly reducing initial equipment investment. The passive copper construction contains no optical components, eliminating post‑installation maintenance costs such as optical end‑face cleaning or transceiver replacements, and substantially lowering total cost of ownership (TCO) for data centers.
2. Ultra‑Low Power
The passive DAC design requires no additional power supply, with power consumption below 0.1W – tens of times lower than active optical module solutions, effectively saving data center electricity costs.
3. Ultra‑Low Latency
Direct electrical signal transmission over copper cables eliminates optical‑electrical conversions, providing extremely low latency. This is especially suitable for latency‑sensitive applications such as AI distributed training and high‑frequency financial trading.
4. High Reliability and Signal Integrity
High‑quality 26 AWG copper conductors combined with EMI‑resistant braided shielding ensure reliable signal integrity over 1‑meter transmission distances. The passive design contains no fragile optical components, significantly reducing failure rates, extending service life, and simplifying maintenance. Optional RHS or IHS packaging and break‑out configurations are available, and the built‑in EEPROM enables plug‑and‑play for flexible, worry‑free deployment.
IV. Application Scenarios
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AI large‑model training clusters
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HPC high‑performance computing clusters
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Next‑generation 1.6T cloud data centers
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Short‑reach direct connections from switches to NICs
V. Ordering Information
| Product Model | Product Description |
|---|---|
| D-QNN-0005M-FF | 1.6T OSFP224 Finned Top DAC 26AWG 0.5m |
| D-QNN-0010M-FF | 1.6T OSFP224 Finned Top DAC 26AWG 1m |
| D-QNN-0005M-RR | 1.6T OSFP224 RHS DAC 26AWG 0.5m |
| D-QNN-0010M-RR | 1.6T OSFP224 RHS DAC 26AWG 1m |
