--- title: "QSwitch" date: "2023-10-26T10:32:13+00:00" modified: "2026-05-12T07:34:15+00:00" url: "https://www.quantum-machines.co/products/qswitch/" description: "Refine your experiments and streamline lab processes with QSwitch: SW-controlled low-frequency signal routing box to automate quantum experiments." --- # QSwitch ![](https://www.quantum-machines.co/wp-content/uploads/2025/07/Group-67069_.webp) ## Software-Controlled Breakout Box Refine Your Experiments and Streamline Lab Processes [ Get Qswitch Spec Sheet ](https://www.quantum-machines.co/request-the-qswitch-spec-sheet/) [ Request a Quote ](https://www.quantum-machines.co/request-a-quote-qswitch/) QSwitch is a versatile low-frequency signal routing box that seamlessly integrates into your existing setup. By streamlining cable management and offering software-controlled convenience, QSwitch makes the last manual lab operations obsolete. It also enables easy monitoring and control via USB and LAN interfaces, making it a perfect fit for your measurement scripts. ## Software-Controlled Signal Routing QSwitch features 24 Fischer-cable inputs with 24 corresponding fixed Fischer-cable outputs, providing reliable direct signal pass-through. Eight configurable BNC outputs allow flexible routing of any of the 24 signal lines for monitoring and control. ![](https://www.quantum-machines.co/wp-content/uploads/2023/12/QSwitch_routing.png) ## Automate Your Measurements Integrate entire measurement sequences into experimental scripts saving valuable research time. QSwitch not only permits off-hour autonomous experiments but also encourages the sharing of standardized measurement scripts among experiments and researchers. ![](https://www.quantum-machines.co/wp-content/uploads/2023/12/QSwitch_UseCase.png) ## Ease of Programming By employing user-friendly SCPI commands, users can effortlessly control, log, and oversee all signal paths, and embed these commands into their control scripts – such as Python scripts – with mere minutes of set-up time. ![](https://www.quantum-machines.co/wp-content/uploads/2023/12/QSwitch_code.png) ## Reliable Operation QSwitch ensures reliable qubit performance with low mutual capacitance and low switching transients. QSwitch is also built with protective mechanisms, such as soft-grounding of all signal lines during power disruption, safeguarding your valuable instruments. ![](https://www.quantum-machines.co/wp-content/uploads/2025/04/Q-Switch-1.png) ## Double Shielded Low Noise Cable QSwitch uses two flexible, low-noise cables with 24-channel Fischer connectors on each end to connect to the QDAC-II and the dilution refrigerator wiring. The cable comes with braided metal underneath the plastic braid, which helps in reducing noise pickup further. [Get QSwitch Spec Sheet](https://www.quantum-machines.co/request-the-qswitch-spec-sheet/) ![](https://www.quantum-machines.co/wp-content/uploads/2023/11/QCable.png) [Get QSwitch Spec Sheet](https://www.quantum-machines.co/request-the-qswitch-spec-sheet/) ## Key Features ![](https://www.quantum-machines.co/wp-content/uploads/2025/04/Q-Switch-1-1024x250.png) - **Signal Routing:** All 24 Fischer lines can be connected to their Fischer input or any parallel BNC connector, floated, and soft-grounded through 1 MΩ resistors. - **Software Control:** Allows remote experiment control using SCPI commands in languages such as Python. - **Optimal Signal Integrity:** Ultra-low noise, minimal crosstalk, low mutual capacitance in twisted pairs, and minimal transients for reliable qubit operation. - **Safety Mechanisms:** Built-in protection via soft-grounding (1 MΩ); automatic grounding before signal lines are opened during power disruptions. - **Ease of Setup:** Includes flexible, low-noise cable assembly and setup instructions to implement switching commands into experiment scripts within minutes. ## Benefits ![](https://www.quantum-machines.co/wp-content/uploads/2023/04/Icon-Easy-to-use.svg) #### Remote Mastery No need for physical presence! Automate channel switches to different instruments to program series of various measurements, and remotely control connections with ease. ![](https://www.quantum-machines.co/wp-content/uploads/2023/03/icon3.-2.svg) #### Time-Effective Say goodbye to manual cabling adjustments and measurement taking. Implement entire measurement procedures in your experiment scripts, allowing you to auto-run experiments off-hours and share standard measurement scripts among experiments and students. ![](https://www.quantum-machines.co/wp-content/uploads/2023/04/Icon-advanced-programming.svg) #### Intuitive Programming Benefit from intuitive SCPI commands that control and monitor all signal routing and are implemented in your control scripts such as Python within minutes. ![](https://www.quantum-machines.co/wp-content/uploads/2023/04/Icon-focus-actual-research.svg) #### Focus on Your Core Research Don’t spend valuable research hours manually carrying out repetitive measurement and characterization processes. With QSwitch, automate one of the last steps in your measurement procedures and focus on the qubit chip and physics itself. ![](https://www.quantum-machines.co/wp-content/uploads/2023/04/Icon-Intuitive-pulse-level.svg) #### Reliable Signal Integrity Experience reliable signal routing with an ultra-low added noise floor and minimal crosstalk. Benefit from low mutual capacitance and minimal switching transients (<10 µV) for reliable qubit operation. ![](https://www.quantum-machines.co/wp-content/uploads/2023/04/Icon-easy-to-set-up.svg) #### Built-In Safety. Features automatic soft-grounding during power disruptions to ensure that your instruments are always protected. ## Why Leading Experts Worldwide Choose Quantum Machines ![](https://www.quantum-machines.co/wp-content/uploads/2023/10/1-300x265.png) ### RT Bayesian estimation for drifts mitigation and improved coherence time “The OPX’s fast feedback and unique real-time processing capabilities were critical for our experiment. Combining these with the OPX’s intuitive programming and QM’s state-of-the-art cryogenic electronics allowed us to do something that we have dreamt of doing for years.” [See case study >>](https://www.quantum-machines.co/wp-content/uploads/2023/10/Prof.-Ferdinand-Kuemmeth.pdf) ![](https://www.quantum-machines.co/wp-content/uploads/2023/10/CF20_0374_Ferdinand-Kuemmeth-300x263.jpg) **Prof. Ferdinand Kuemmeth** Professor at Center for Quantum Devices, Niels Bohr Institute, University of Copenhagen, Denmark ![](https://www.quantum-machines.co/wp-content/uploads/2023/10/1-300x265.png) ![](https://www.quantum-machines.co/wp-content/uploads/2023/05/Picture2.png) ### I have rarely encountered a company as remarkable as Quantum Machines "I regard Quantum Machines as the quintessential example of how deep-tech companies should operate in harmony. Their OPX+ devices exemplify excellence, and the team's unmatched business ethos sets them apart. From unboxing the OPX+ to the first measurements is a truly exhilarating experience. They consistently go above and beyond for their customers, ensuring mutual success. Transitioning from academia to the startup realm, I have rarely encountered a company as remarkable as Quantum Machines." ![](https://www.quantum-machines.co/wp-content/uploads/2023/05/Picture3.png) **Dr. Gopi Balasubramanian** CEO and Co-founder XeedQ ![](https://www.quantum-machines.co/wp-content/uploads/2023/05/Picture2.png) ![](https://www.quantum-machines.co/wp-content/uploads/2023/04/NYU-Logo-300x169.png) ### Innovative engineering and higher research throughput “QCage integrates seamlessly into our workflow of preparing and loading QPUs and supports higher throughput in our lab. Our research directly benefits from QCage's innovative design and engineering.” ![](https://www.quantum-machines.co/wp-content/uploads/2023/04/shabani-javad.png) **Prof. Javad Shabani** New York University ![](https://www.quantum-machines.co/wp-content/uploads/2023/04/NYU-Logo-300x169.png) ![](https://www.quantum-machines.co/wp-content/uploads/2023/04/download.png) ### Q-factors as high as 200 million “QM's chip packaging solutions are exquisite pieces of engineering that have enhanced our resonator Q-factors to as much as 200 million. It is clearly a very highly engineered product that I am sure will be widely adopted in our field.” ![](https://www.quantum-machines.co/wp-content/uploads/2023/04/Capture.png) **Kevin Crowley** Houck Lab, Princeton University ![](https://www.quantum-machines.co/wp-content/uploads/2023/04/download.png) ![](https://www.quantum-machines.co/wp-content/uploads/2020/01/Harvard_University_logo.svg) ### The dedicated hardware we have been dreaming of “Dedicated hardware for controlling and operating quantum bits is something we have all been dreaming of. Quantum Machines has answered this call by allowing us and others in the field to scale up with ease and with far greater functionality than was ever possible before.” ![](https://www.quantum-machines.co/wp-content/uploads/2023/03/Prof.-Amir-Yacoby.webp) **Prof. Amir Yacoby** Harvard University ![](https://www.quantum-machines.co/wp-content/uploads/2020/01/Harvard_University_logo.svg) ## Why Leading Experts Worldwide Choose Quantum Machines RT Bayesian estimation for drifts mitigation and improved coherence time “The OPX’s fast feedback and unique real-time processing capabilities were critical for our experiment. Combining these with the OPX’s intuitive programming and QM’s state-of-the-art cryogenic electronics allowed us to do something that we have dreamt of doing for years.” [See case study >>](https://www.quantum-machines.co/wp-content/uploads/2023/10/Prof.-Ferdinand-Kuemmeth.pdf) ![](https://www.quantum-machines.co/wp-content/uploads/2023/10/CF20_0374_Ferdinand-Kuemmeth-300x263.jpg) **Prof. Ferdinand Kuemmeth** Professor at Center for Quantum Devices, Niels Bohr Institute, University of Copenhagen, Denmark ![](https://www.quantum-machines.co/wp-content/uploads/2023/10/1-300x265.png) I have rarely encountered a company as remarkable as Quantum Machines "I regard Quantum Machines as the quintessential example of how deep-tech companies should operate in harmony. Their OPX+ devices exemplify excellence, and the team's unmatched business ethos sets them apart. From unboxing the OPX+ to the first measurements is a truly exhilarating experience. They consistently go above and beyond for their customers, ensuring mutual success. Transitioning from academia to the startup realm, I have rarely encountered a company as remarkable as Quantum Machines." ![](https://www.quantum-machines.co/wp-content/uploads/2023/05/Picture3.png) **Dr. Gopi Balasubramanian** CEO and Co-founder XeedQ ![](https://www.quantum-machines.co/wp-content/uploads/2023/05/Picture2.png) Innovative engineering and higher research throughput “QCage integrates seamlessly into our workflow of preparing and loading QPUs and supports higher throughput in our lab. Our research directly benefits from QCage's innovative design and engineering.” ![](https://www.quantum-machines.co/wp-content/uploads/2023/04/shabani-javad.png) **Prof. Javad Shabani** New York University ![](https://www.quantum-machines.co/wp-content/uploads/2023/04/NYU-Logo-300x169.png) Q-factors as high as 200 million “QM's chip packaging solutions are exquisite pieces of engineering that have enhanced our resonator Q-factors to as much as 200 million. It is clearly a very highly engineered product that I am sure will be widely adopted in our field.” ![](https://www.quantum-machines.co/wp-content/uploads/2023/04/Capture.png) **Kevin Crowley** Houck Lab, Princeton University ![](https://www.quantum-machines.co/wp-content/uploads/2023/04/download.png) The dedicated hardware we have been dreaming of “Dedicated hardware for controlling and operating quantum bits is something we have all been dreaming of. Quantum Machines has answered this call by allowing us and others in the field to scale up with ease and with far greater functionality than was ever possible before.” ![](https://www.quantum-machines.co/wp-content/uploads/2023/03/Prof.-Amir-Yacoby.webp) **Prof. Amir Yacoby** Harvard University ![](https://www.quantum-machines.co/wp-content/uploads/2020/01/Harvard_University_logo.svg) ![](https://www.quantum-machines.co/wp-content/uploads/2023/10/1-300x265.png) RT Bayesian estimation for drifts mitigation and improved coherence time ![](https://www.quantum-machines.co/wp-content/uploads/2023/05/Picture2.png) I have rarely encountered a company as remarkable as Quantum Machines ![](https://www.quantum-machines.co/wp-content/uploads/2023/04/NYU-Logo-300x169.png) Innovative engineering and higher research throughput ![](https://www.quantum-machines.co/wp-content/uploads/2023/04/download.png) Q-factors as high as 200 million ![](https://www.quantum-machines.co/wp-content/uploads/2020/01/Harvard_University_logo.svg) The dedicated hardware we have been dreaming of ## More Products ![](https://www.quantum-machines.co/wp-content/uploads/2024/02/OPX1000-new.png)### OPX1000 A state-of-the-art controller designed for large-scale quantum computers. ![](https://www.quantum-machines.co/wp-content/uploads/2024/02/QDAC-II-compact-1.jpg)### QDAC-II Compact An extremely stable, low-noise, 24-channel, single rack unit DAC. [ Learn More ](https://www.quantum-machines.co/products/qdac-compact/) ![](https://www.quantum-machines.co/wp-content/uploads/2023/04/QBox.2-1.png)### QBox Reliable 24-channel fully shielded Fischer connector to BNC breakout box, with sample protection. [ Learn More ](https://www.quantum-machines.co/products/qbox/) ![](https://www.quantum-machines.co/wp-content/uploads/2023/03/octave-mob-bg-small.png)### Octave Auto-calibrated IQ mixing and local oscillator system, for signals up- and down- conversion, extending the OPX+ range to 18GHz. [ Learn More ](https://www.quantum-machines.co/products/octave/) ![](https://www.quantum-machines.co/wp-content/uploads/2023/03/OPX2.png)### OPX+ FPGA-based controller for real-time quantum sequences, offering the lowest analog feedback latency and the shortest runtimes. [ Learn More ](https://www.quantum-machines.co/products/opx/) ![](https://www.quantum-machines.co/wp-content/uploads/2023/11/QBoard-II-1.png)### QBoard-II A modular, PCB-based sample holder system for low-temperature spin-qubit chips, general transport experiments, and superconducting circuits. [ Learn More ](https://www.quantum-machines.co/products/qboard/) ![](https://www.quantum-machines.co/wp-content/uploads/2023/03/QCage.2-1.png)### QCage Sample holder for microwave resonators-based quantum devices, allowing high-fidelity operation of tens of qubits up to 18 GHz. [ Learn More ](https://www.quantum-machines.co/products/qcage/) ![](https://www.quantum-machines.co/wp-content/uploads/2023/03/QFilter2.png)### QFilter-II Compact multi-stage low-pass cryogenic filter ensuring millikelvin electron temperature in 24 lines simultaneously. [ Learn More ](https://www.quantum-machines.co/products/qfilter/) ![](https://www.quantum-machines.co/wp-content/uploads/2023/03/QDAC2.png)### QDAC-II Ultra-low-noise 24-channel DAC, up to 25-bit resolution and 1MS/s, for DC and low-frequency control. [ Learn More ](https://www.quantum-machines.co/products/qdac/) ## Accelerate the Realization of Practical Quantum Computing [Contact us](/contact-us/) ## Take the Next Step ![](https://www.quantum-machines.co/wp-content/uploads/2023/05/Asset-3.svg) Have a specific experiment in mind and wondering about the best quantum control and electronics setup? [Talk to an Expert](https://www.quantum-machines.co/contact-us/) ![](https://www.quantum-machines.co/wp-content/uploads/2023/02/Group-175897-1.svg) Want to see what our quantum control and cryogenic electronics solutions can do for your qubits? [Request a Demo](https://www.quantum-machines.co/request-demo/)