Product Overview
The T DQ4CNT N00 is a 100G QSFP28 to 4x 25G SFP28 passive direct attach copper (DAC) breakout cable, designed for ultra-low latency and short-distance connectivity in high-density data center environments. This high-performance breakout DAC cable allows a single 100G QSFP28 port to be split into four 25G SFP28 lanes, making it ideal for Top-of-Rack (ToR) switch-to-server applications or network aggregation layers that demand cost-effective, power-efficient links.
Product Details
| Attribute | Description |
| Product Name | T DQ4CNT N00 |
| Cable Type | Passive Direct Attach Copper Cable (DAC) |
| Form Factor | QSFP28 to 4 x SFP28 |
| Data Rate | 100 Gbps (4 x 25 Gbps) |
| Transmission Speed | 25 Gbps per channel |
| Interface Type | 1 x QSFP28 ↔ 4 x SFP28 |
| Cable Length | Factory-configured (e.g., 0.5 m – 3 m, depending on configuration) |
| Conductor Material | Twinax copper |
| Application | Short-reach switch-to-server links, aggregation, ToR deployments |
| Operating Temperature | 0C to 70C |
Key Features
QSFP28 to 4 x SFP28 passive copper breakout cable
Supports 100G Ethernet split into four 25G connections
No power consumption and ultra-low latency performance
Pre-terminated plug-and-play design
Compliant with SFF-8636, QSFP28 and SFP28 MSA specifications
EMI shielding and excellent signal integrity
Ideal for short-reach ToR, midplane, and NIC connections
Technical Specifications
| Specification | Value |
| Interface | QSFP28 to 4 x SFP28 |
| Total Data Rate | 100 Gbps |
| Channel Data Rate | 25 Gbps |
| Cable Type | Passive Twinax Copper |
| Typical Lengths | 0.5 m, 1 m, 2 m, 3 m |
| Connector Type | QSFP28 / SFP28 |
| Power Consumption | 0 W |
| Operating Temperature | 0C to 70C |
| EMI Performance | High Shielding |
| Compliance | RoHS, QSFP28/SFP28 MSA, SFF-8636 |
Similar Models Comparison
| Model Name | Interface | Type | Data Rate | Max Length | Use Case |
| T DQ4CNT N00 | QSFP28 to 4x SFP28 | Passive DAC | 100G | 3 m | ToR switch breakout |
| T DQ4CND N00 | QSFP28 to 4x SFP28 | Passive DAC | 100G | 3 m | Server NIC connection |
| T DQ4CNL N00 | QSFP28 to 4x SFP28 | Passive DAC | 100G | 3 m | Aggregation deployment |
| QSFP28-4SFP28-AOC | QSFP28 to 4x SFP28 | Active Optical | 100G | 30 m | Rack-to-rack connectivity |
