BlueLAN X4DACBL2-BL Compatible Intel 40GBASE-CR4 QSFP to 4x10GBASE-CR SFP+ Passive Direct Attach Breakout Cable, 2 m, AWG30

This BlueLAN breakout cable is a direct replacement for the Intel X4DACBL2, converting a single 40GbE QSFP port into four independent 10GbE SFP+ links. Unlike active optical cables, it uses passive copper conductors to keep power draw at zero and latency at the physical minimum, which matters in dense rack environments where every watt and nanosecond counts.

Highlights

• Passive copper design – no power consumption, no signal regeneration
• QSFP to 4x SFP+ breakout for flexible 40G-to-10G connectivity
• 2-meter length with AWG30 wire gauge for short-reach, high-density cabling
• Hot-swappable connectors for uninterrupted maintenance
• 100-ohm impedance for reliable signal integrity

In daily use

Deploy this cable between a 40GBASE-CR4 switch port and four 10GBASE-CR servers or storage nodes. The breakout design eliminates the need for separate transceivers and patch panels, reducing both cost and points of failure. The 2-meter length is ideal for top-of-rack or adjacent-rack connections, while the passive construction ensures zero added heat in the rack.

Full specifications

• Product Type: Direct Attach Breakout Cable (DAC)
• Cable Technology: Passive Copper
• Cable Length: 2 Meter
• Wire Gauge: AWG30
• Connector A: QSFP (Quad Small Form-factor Pluggable)
• Connector B: 4x SFP+ (Small Form-factor Pluggable Plus)
• Aggregate Data Rate: 40 Gbps
• Per Lane Data Rate: 4x 10 Gbps
• Ethernet Standard (Connector A): 40GBASE-CR4
• Ethernet Standard (Connector B): 4x 10GBASE-CR
• Compatibility: Intel X4DACBL2 Equivalent
• Hot-Swappable: Yes
• Power Consumption: Ultra-low (Passive)
• Application: Data Center Interconnect, High-Performance Computing, Network Storage
• Protocol Support: Ethernet
• Industry Standards: SFF-8436 (QSFP), SFF-8431 (SFP+)
• Impedance: 100 Ohm
• Operating Temperature: 0°C to 70°C
• RoHS Compliant: Yes

Final note

When you need a dependable 40G-to-10G breakout without adding active components, this BlueLAN cable delivers exactly what the Intel part number promises – no more, no less.