Detailed Specifications
Extreme Network Inc 40G-DACP-QSFP1M - QSFP+ DAC Cable
Overview :
The Extreme Networks 40G-DACP-QSFP1M is a 1-meter QSFP+ to QSFP+ passive direct attach copper (DAC) cable designed for short-reach 40GbE interconnects in data center switching environments. It is used to connect compatible Extreme Networks switches, top-of-rack (ToR) systems, and aggregation layers without requiring optical transceivers.
It supports 40GBASE-CR4 over twinax copper with four 10Gbps lanes and is optimized for very low latency, zero-power passive operation, and high signal integrity over short distances (typically 1 meter).
This cable is strictly limited to QSFP+ 40G ports and cannot be used for SFP+ or breakout-to-1G/10G designs. It is commonly deployed inside racks for switch-to-switch or switch-to-server uplinks.
It is not suitable for long-distance inter-rack connectivity or fiber-based architectures.
Key Features :
- 40Gbps QSFP+ to QSFP+ passive DAC for short reach links
- Low-latency twinax copper design with zero power draw
- Compliant with 40GBASE-CR4 IEEE Ethernet standard
- Hot-pluggable QSFP+ connectors for live switching
- Optimized for intra-rack high-density switch interconnects
Specifications :
| Parameter | Value |
|---|
| Brand | Extreme Networks |
| Part Number | 40G-DACP-QSFP1M |
| Product Type | Passive Direct Attach Copper Cable |
| Cable Type | Twinax Copper (Passive DAC) |
| Connector Type | QSFP+ to QSFP+ |
| Data Rate | 40 Gbps (4 × 10.3125 Gbps lanes) |
| Ethernet Standard | 40GBASE-CR4 |
| Cable Length | 1 meter (3.28 ft) |
| Wire Gauge | 30 AWG |
| Power Consumption | 0 W (passive) |
| Interface | QSFP+ MSA compliant |
| Temperature Range | 0°C to 70°C |
| Application | Data center switch interconnect |
| Signal Type | Electrical differential twinax |
