Iuron IU-CAB-QSFP/4SFP+-P1M 40GBASE-CR4 QSFP+ to 4x SFP+ DAC Breakout Cable 1M

The Iuron IU-CAB-QSFP/4SFP+-P1M is a 1-meter passive direct attach copper (DAC) breakout cable that connects a single 40GBASE-CR4 QSFP+ port to four independent 10GBASE-CU SFP+ ports. Designed for IT professionals building or expanding high-density network infrastructure, this cable delivers up to 10.3125 Gb/s per SFP+ channel with a 40 Gb/s aggregate throughput—eliminating the cost and complexity of optical transceivers for short-reach intra-rack and inter-rack connections. Its passive copper construction requires no onboard signal processing electronics, resulting in lower power consumption and reduced per-port cost. The cable is fully compliant with SFP+ and QSFP Multi-Source Agreement (MSA) standards and carries RoHS certification, making it suitable for environmentally conscious procurement programs. Protocol-agnostic support for 40GbE, QDR InfiniBand, SAS, and Fibre Channel broadens its applicability across switching, server, and direct-attached storage deployments.

Key features & benefits

• 40G-to-4x10G Breakout Architecture — A single QSFP+ port is fanned out to four independent SFP+ connections, enabling one 40 Gb/s switch port to feed up to four 10GbE-capable hosts, switches, or servers without additional hardware.
• 10.3125 Gb/s Per-Channel Transfer Rate — Each SFP+ leg operates at up to 10.3125 Gb/s, delivering full 10GbE line-rate performance on all four channels simultaneously for an aggregate throughput of 40 Gb/s.
• Protocol-Agnostic Operation — Supports 40GbE, QDR InfiniBand, SAS, and Fibre Channel, providing flexibility across diverse network, storage, and HPC fabric environments without requiring protocol-specific cabling.
• Passive Copper Design — The passive DAC construction draws no active power from the host port electronics, reducing overall switch and server power budgets compared to active or optical alternatives.
• Zinc Die-Cast Connectors with Pull-to-Release Latching — Both the QSFP and SFP+ connectors feature zinc die-cast housings and pull-to-release latching mechanisms, ensuring secure seating and straightforward removal in high-density patching environments.
• Low Cross-Talk and Pair-to-Pair Skew — The 30AWG copper construction is engineered to minimize cross-talk and pair-to-pair skew, maintaining signal integrity across all four channels at full operating speed.
• MSA and RoHS Compliance — Full compliance with SFP+ MSA (SFF-8431) and QSFP MSA (SFF-8436) standards ensures broad interoperability, while RoHS certification meets global environmental and hazardous-substance regulations.