Feature Highlights: 1. Two Premium Sets Included – Each set contains 4 adapter boards, ready for multiple installation points or backup needs. 2. Built to Last – Made with a sturdy PCB board, reinforced plastic, and metal components for reliable performance in industrial environments. 3. Simple Driver Setup – Only one compact driver file (CH375DOS.Sys) is required, taking up less than 5KB and just 4KB after loading. 4. Hot-Swappable & Easy to Use – Supports plug-and-play USB drives. Connect the drive only when needed—no reboot necessary. 5. Wide Compatibility – Works with DOS versions from 3.x to 7.x and supports Windows 3.X, 95/98/ME. Compatible with FAT12, FAT16, and FAT32 file systems. Product Details: This adapter enables seamless data backup and exchange between industrial computers/embedded systems and standard USB drives. It operates only during active read/write processes, ensuring no interference with existing DOS or industrial system operations. Using widely available USB drives (easier to source than flash memory or electronic disks), it offers flexible, large-capacity storage without hardware limits. Ideal for non-real-time data transfer in automation, control, and embedded applications. Specifications: - Color: Green - Material: PCB board + plastic + metal - Package Contents: 4 x ISA to USB Adapter Board Note: Product appearance may vary slightly between batches but does not affect functionality. Slight color variations may occur due to lighting or display differences. Measurements allow a tolerance of +/- 1–3 cm. Package includes only the items listed above; no other accessories are included.