U2002H USB Power Sensor, 50 MHz to 24 GHz | Keysight
Amazon.com: Alacrity ID RFID Card Reader Writer 13.56Mhz Reader USB Read 1326 Family Proximity Cards Card Access Control System Home Again Microchip Scanner (USB Port) : Electronics
Agilent U2001A USB Power Sensor, 10 MHz to 6 GHz, -60 dBm to +20 dBm
900 MHz Modem: Relay Pros
Amazon.com: YARONGTECH® RFID MIFARE Card Reader 13.56mhz USB : Electronics
USB RFID Reader And Writer Module
RDR-7581AKU WAVE ID® Solo Keystroke 13.56MHz CSN Black USB Reader - rfIDEAS-shop
External Secured RFID Card Reader 125kHz + 13.56MHz with NFC (USB) | Axis Communications
USB Frequency Synthesizer PLL, 35 MHz to 4.4 GHz, 50 MHz Reference -103 dBc/Hz Phase
USB Frequency Synthesizer PLL, 35 MHz to 4.4 GHz, 50 MHz Reference -103 dBc/Hz Phase
SA124B — 12.4 GHz Spectrum Analyzer | Signal Hound
USB PLL Frequency Synthesizer, 35 MHz - 4.4 GHz, -20 dBm Pout, 50 MHz Reference and SMA output
USB Frequency Synthesizer PLL, 35 MHz to 4.4 GHz, 50 MHz Reference -103 dBc/Hz Phase
PS 5444D: USB oscilloscope, 200 MHz, 4 channels at reichelt elektronik
This $8 USB Transceiver Can Add 433 MHz Device Support to your Home Automation Gateway - CNX Software
SynthUSB3 12.5MHz 6.4GHz RF Signal Generator ($389.00) : Saelig Online Store
2N USB External RFID Card Reader, 125 kHz & 13.56 MHz - 01400-001