Chelsio QSFP+ 1m Direct Attach Copper (DAC) Cable - 40GbE Passive QSFP+ to QSFP+ - Black

The Chelsio QTAPCABLE1M is a high-performance 1-meter QSFP+ direct attach copper (DAC) cable designed for 40 Gigabit Ethernet connectivity. This passive cable provides a cost-effective, low-power solution for short-range interconnects in data centers, high-performance computing (HPC), and enterprise networks. It is fully compliant with IEEE 802.3ba (40GBASE-CR4) and SFF-8436 standards, ensuring reliable operation with Chelsio and other MSA-compliant equipment.

Advantages

This DAC cable offers several benefits over optical transceivers: lower power consumption (<0.1W), reduced latency, and no need for cleaning or alignment. The passive design ensures zero power draw from the host device, making it ideal for high-density environments. The 30 AWG construction and PVC jacket provide durability and flexibility for easy cable management.

Suitable for

• Data center top-of-rack (ToR) to server connections
• High-performance computing clusters
• Enterprise network switches and routers
• Storage area networks (SAN)
• Any 40GbE QSFP+ port requiring short-reach copper interconnect

Key specifications

• Cable Type: Direct Attach Copper (DAC), Passive
• Connector Type: QSFP+ to QSFP+
• Data Rate: 40 Gigabit Ethernet (40GbE)
• Cable Length: 1 meter (3.3 feet)
• Wire Gauge: 30 AWG
• Impedance: 100 Ohm
• Jacket Material: PVC
• Cable Color: Black
• Hot Swappable: Yes
• Compliance: IEEE 802.3ba, SFF-8436, RoHS
• Operating Temperature: 0°C to 70°C
• Storage Temperature: -40°C to 85°C
• Power Consumption: <0.1W (Passive)

Recommendations

For optimal performance, use this cable with Chelsio QSFP+ ports or other MSA-compliant 40GbE equipment. Ensure the cable is not bent beyond its minimum bend radius to avoid signal degradation. This cable is ideal for rack-to-rack or rack-to-server connections up to 1 meter.