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Benchtop-class network analysis in a compact footprint
Keysight XN4-class USB vector network analyzers include the Streamline Series VNAs. They provide high performance in a lightweight, portable form factor — ideal for labs with limited space. Unlike benchtop vector network analyzers, which are standalone instruments, USB VNAs connect to a host PC to handle data processing and analysis. Transfer your component characterization data across the workflow easily using the same user interface, measurement capabilities, and automation code as our benchtop and modular vector network analyzers. Get the same measurement reliability as our Essential benchtop VNAs in a portable unit. With models ranging from 2 to 6 ports, select the USB vector network analyzer that is right for your application. Choose one of our most popular configurations or build the one you need for your application. Need help selecting? Check out the resources below.
Portable form factor
Benchtop measurements in a lightweight, compact unit make it ideal to easily share between lab benches.
Secure environment
Reduce data breach concerns when testing in secure environments by using a USB VNA with no onboard memory.
Multiport measurements
Cascade multiple USB vector network analyzers to configure a stackable, multiport test solution.
Consistent user experience
Integrate USB VNAs into your workflow with the same user interface as our Essential VNAs.
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Number of built-in ports
2, 4, 6
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Maximum frequency
20 GHz to 53 GHz
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Maximum output power
8 dBm to 10 dBm
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Maximum number of sources
1
Most popular configurations
XN4-class USB Vector Network Analyzer, 2-port
XN4-class USB Vector Network Analyzer, 4-port
XN4-class USB Vector Network Analyzer, 4- or 6-port
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Frequently asked questions
A USB network analyzer makes multiport measurements more efficient by allowing you to monitor and analyze multiple ports simultaneously using cascaded USB network analyzers. Instead of manually reconnecting and testing each port one at a time, you can capture traffic across all active ports at once, reducing setup time and streamlining the test process.
Portable USB network analyzers enable you to easily scale test setups based on your needs, whether you're validating a two-port embedded system or analyzing eight-ports. You can add or remove USB network analyzers as needed without disrupting the entire configuration.
Yes, Keysight USB VNA supports multiport expansion by connecting up to two instruments, allowing them to function as a unified multiport analyzer.
The maximum operating frequency of the combined system is determined by the instrument with the lowest frequency range. For example, if one unit supports up to 9 GHz and the other up to 26.5 GHz, the system’s usable frequency range in multiport mode will be limited to 9 GHz.
USB network analyzers offer significant benefits, including lower cost, smaller size, and easy portability compared to traditional VNAs. They are ideal for field measurements, remote testing, and space-constrained lab environments. Despite their compact size, many USB VNAs deliver high accuracy, broad frequency coverage, and advanced measurement features, enabling engineers to perform professional-grade RF and microwave analysis anywhere.