Adafruit Slider Trinkey - USB NeoPixel Slide Potentiometer : ID 5021 : $9.95 : Adafruit Industries, Unique & fun DIY electronics and kits
Amazon.com: USB Adjustable Power Supply Module, Step Up Step Down Module for 5V to 3.3V 9V 12V 24V Conversion, Multi Turn Potentiometer with Adjustment Knob for Manual Adjustment of Output Voltage :
5v To 12v Usb Fan Stepless Speed Controller Fan Governor Adjustable Potentiometer With Male Female Usb Type-a Adapter - Integrated Circuits - AliExpress
Amazon.com: DollaTek 15W USB Step UP Power Supply Module Boost Adjustable Converter Fan Speed Control Potentiometer with LCD Display - Red : Electronics
Usb Voltage Regulator Power Module | Voltage Regulator Usb Female - 1pc Usb Led Dc-dc - Aliexpress
LENTION USB-A to USB-A Charger Protector Adapter|Lention
Boost Voltage Converter, Compact Size USB Power Module Precise Potentiometer 3W Power For Electronic Equipment - Walmart.com
USB Power Module, Boost Voltage Converter Manual Adjustment Precise Potentiometer 3W Power For Electronic Equipment - Walmart.com
Boost Voltage Converter, USB Power Module Precise Potentiometer 3W Power With ABS Shell For Electronic Equipment - Walmart.com
Amazon.com: USB Adjustable Power Supply Module, Step Up Step Down Module for 5V to 3.3V 9V 12V 24V Conversion, Multi Turn Potentiometer with Adjustment Knob for Manual Adjustment of Output Voltage :
DSCUSB-PT | Resistance Based Potentiometer Input to Digital Output
2PCS DC 5V USB Fan Stepless Speed Regulation Module Adjustable Potentiometer | eBay