Gadgets

USB Testers

• under $20: MakerHawk Atorch ($15)
• under $60: Fnirsi FNB58 ($58)
• around $100: Power-Z KM003C ($109)

Circuits

• logic analyzer
  • budget: knockoff Saleae analyzers
  • under $150: DSLogic Plus ($149)
  • over $300: DSLogic Pro ($399)
  • over $500: Saleae Logic 8 ($499) / 8 Pro ($999) / 16 ($1499)
• single board computers: Raspberry Pi 5 ($ depends on RAM) / others

Wireless

• multi-tool: Flipper Zero ($169)
• wireless dongle: Alfa AWUS036AC ($49) or AWUS036ACH ($64) / other Alfa dongles

Other

• remote computer control: JetKVM ($69)