1. Working environment with strong electrical interference: Some circuits involve high voltage, inverters, motor drives, and other sources of strong electrical noise. When connecting USB devices to a computer in such environments, isolation is required to protect the computer and ensure personal safety. 2. Noise-sensitive applications: Computers can generate significant electrical noise. In precision applications such as high-fidelity audio (HIFI) systems or high-precision USB data acquisition systems, a USB isolator helps eliminate ground loops and noise interference. 3. USB debugging tools: For USB-based debugging equipment such as JTAG/SWD emulators, ISP/ASP/IAP programmers, and downloaders, connection issues or abnormal behavior during debugging may be resolved by using a USB isolator to break ground loops. 4. Industrial USB devices: In industrial settings, USB peripherals such as mice, keyboards, and USB-to-serial converters are prone to malfunctions or damage due to electrical noise and ground potential differences. A USB isolator reduces the risk of device failure and improves system reliability. It can also function as a USB repeater for cable extension while isolating ground voltage differences between connected devices. 5. Common USB peripherals: Compatible with standard USB devices including mice, keyboards, USB sound cards, flash drives, printers, digital cameras, USB hubs, and USB webcams. Tested and supported devices: Full-speed USB devices including USB flash drives, digital cameras, memory card readers, external hard drives, USB-to-serial converters (FT232, CP2102, PL2303, CH341), and programming tools such as AVRJTAG, AVRISP, AVRISPMKII, S-Lab, JET51, FET430UIF, PICKIT2, XDS100, -Link, ICD2. Not supported: USB wireless network adapters and some USB 3.0 flash drives. Technical specifications: - Complies with USB 2.0 standards - Signal isolation voltage: 2500V - Power module isolation voltage: 1500V - Supports USB full-speed data rate (12 Mbps) - Does not support high-speed (USB 3.0) devices - Supports control, bulk, interrupt, and isochronous transfers - Powered directly from the host USB port - Plug-and-play, no driver required - Operating temperature: -40°C to +85°C - Color: Transparent Black - Material: ABS + metal - Dimensions: 52.9 x 14.2 x 23.6 mm Package includes: 1 x USB isolator Note: The package includes only the USB isolator. Other items shown are not included. Note: Lighting and display settings may cause slight color variations between the image and the actual product. Measurement error allowed within +/- 1-3 cm.