BlueLAN 20G-DACP-QSFP1SFPDD3M Compatible 20Gbps QSFP to SFP-DD Direct Attach Copper Cable, 3m, Passive Twinax, 100 Ohm, Hot-Swappable 20G-DACP-QSFP1SFPDD3M-BL

With a 20 Gbps data rate over a 3-meter passive copper twinax link, this BlueLAN direct attach cable bridges QSFP and SFP-DD ports without the cost or complexity of optical transceivers. It is engineered for server-to-server and data center interconnect applications where low latency and low power consumption are critical.

Overview

The BlueLAN 20G-DACP-QSFP1SFPDD3M is a compatible direct attach cable (DAC) that replaces the original 20G-DACP-QSFP1SFPDD3M part. It features a QSFP connector on one end and an SFP-DD (Small Form-factor Pluggable Double Density) connector on the other, delivering a reliable 20 Gbps link over 3 meters of 100-ohm twinax copper. The passive design draws no additional power, making it an energy-efficient choice for dense rack deployments.

What stands out

• 20 Gbps aggregate bandwidth for high-throughput interconnects
• Passive copper twinax construction—no power draw, minimal heat
• QSFP to SFP-DD connectivity supports mixed-port environments
• Hot-swappable for zero-downtime maintenance
• 100-ohm impedance ensures signal integrity over the full length
• RoHS compliant and built for 0°C to 70°C operating range

Technical details

• Product type: Direct Attach Cable (DAC)
• Cable type: Copper Twinax
• Data rate: 20 Gbps
• Connector A: QSFP (Quad Small Form-factor Pluggable)
• Connector B: SFP-DD (Small Form-factor Pluggable Double Density)
• Cable length: 3 meters (9.84 ft)
• Cable design: Passive
• Compatibility (original part): 20G-DACP-QSFP1SFPDD3M
• Hot-swappable: Yes
• Low power consumption: Yes
• Impedance: 100 Ohm
• Application: Data Center Interconnect, High-Performance Networking, Server-to-Server
• RoHS compliant: Yes
• Operating temperature: 0°C to 70°C
• Vendor specific code: SC252501K3M30

Our verdict

For IT teams needing a short, high-speed copper link between QSFP and SFP-DD ports, this BlueLAN DAC delivers plug-and-play reliability at a fraction of the cost of optical alternatives. Its passive design and broad temperature tolerance make it a dependable choice for modern data centers.