Delft Circuits, a provider of high-density connectivity solutions for quantum computers, has announced its roadmap for scaling quantum computers, which is built from the perspective of enabling industrial error-corrected quantum systems. The roadmap addresses one of the challenges in full-scale quantum computing: reliably connecting thousands of qubits. Delft Circuits’ Cri/oFlex® cables are intended to replace traditional coaxial cabling, which the company says faces scaling limits due to its large physical footprint and reliability issues.
The Cri/oFlex® cables combine superconducting materials with filters and integrated attenuators in multichannel flex cables. The roadmap highlights a plan to increase channel count per system (Quantity), not introduce noise (Quality), and limit failure points (Reliability). The company’s roadmap projects channel density to increase from 256 channels per loader to 1,024 by 2027 and 4,096 by 2029, with a goal of enabling fault-tolerant quantum computing by 2030. The cables also offer enhanced reliability, with a simplified design intended to deliver 5-20x fewer failure points compared to coax, and cryogenic optimization with a flat cable design that enables faster thermalization and a lower heat load.
The roadmap is intended to address scaling bottlenecks and lay the foundation for quantum computers to connect thousands of qubits and support advanced error correction. Delft Circuits notes that as quantum technology matures, I/O is becoming its own dedicated horizontal layer in the quantum ecosystem. The company has launched a US customer roadshow to engage with industry leaders on roadmap deliverables.
Read the full announcement in the Delft Circuits press release here and the company’s full roadmap here.
September 19, 2025
