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16 Channels Logic Analyzer USB 2.0 Interface 100MHz Sampling Rate Supports PC Software for Timing Judgment and Analysis - Walmart.com
Spectrum Analyzer Usb Ltdz 35-4400mhz Signal Source With Tracking Source Module Rf Frequency Domain Analysis Tool With Shell - Accessories - AliExpress
Rent or Buy Tektronix RSA603A USB Real Time Spectrum Analyzer, 9 kHz - 3 GHz
Signal Hound USB SA44B Spectrum Analyzer and Measuring Receiver 1Hz - 4.4 GHz | eBay