The IU-CAB-QSFP/4SFP+-P1M is a high-performance and cost-effective interconnect solution designed for IT professionals seeking to bridge 40G QSFP and 10G SFP+ enabled host adapters, switches, and servers. This 1-meter passive direct attach copper (DAC) cable ensures seamless integration between high-speed networking components, offering a reliable and economical alternative to optical solutions. With a QSFP connector (SFF-8436) rated for 40 Gb/s on one end and four SFP+ connectors (SFF-8431) rated for 10 Gb/s each on the other, it enables efficient and scalable network expansion. Supporting a transfer rate of up to 10.3125 Gb/s per SFP+ channel, this cable is ideal for high-performance environments such as data centers, network infrastructure, and direct-attached storage applications. Its robust design features zinc die-cast connectors with pull-to-release latching, ensuring secure and stable connections while minimizing signal loss through low cross-talk and pair-to-pair skew. Fully compliant with the latest SFP+ and QSFP MSA standards and RoHS certified for environmental protection, the IU-CAB-QSFP/4SFP+-P1M delivers exceptional performance with a lower power budget and reduced port costs compared to traditional optical alternatives. Whether used for connecting 40G QSFP+ enabled switches to multiple 10G SFP+ switches or optimizing data center architectures, this cable provides an efficient, high-speed networking solution without compromising on reliability or affordability.