System requirements

Operating system Microsoft® Windows 7, Windows 8, Windows 8.1, Windows 10, Windows 11
Processor 1GHz Intel/AMD processor or above
RAM 512MB RAM (1024MB or above recommended)
Others Internet Connection; Computer Authorization; QuickTime Installation for 32-bit Computer without Discrete Graphics; 64-bit Computer in Conversion of Video/Music/Audiobook

References

Input
eBook epub, mobi, azw3, azw, kfx, prc, html, txt
Output Formats
eBook epub, mobi, azw3, txt
Output Player Supported
player devices Kindle e-ink Readers, Kobo, Zune, Creative Zen, Sony, Samsung, car radio system, and other common MP3 players

CPU and Storage Occupations

CPU and Internal Storage Occupations
CPU 0% in standby, 20.6% in file loading, 29.4% in file converting
Internal Storage 32.4M in standby, 66.2M in file loading and converting

System requirements

Operating system macOS Yosemite (10.10), macOS X El Capitan (10.11), macOS Sierra (10.12), macOS High Sierra (10.13), macOS Majave (10.14), macOS Catalina (10.15), macOS Big Sur (11), macOS Monterey (12), macOS Ventura(13), macOS Sonoma (14), macOS Sequoia(15).
Processor 2.0GHz Intel Core 2 Duo or above and Apple M1/M2/M3 chip
RAM 2G or above recommended
Others iTunes 12.5 and later; Internet Connection; Computer Authorization;

References

Input
eBook epub, mobi, azw3, azw, kfx, prc, html, txt (Amazon kindle 6, kindle 7 are currently not supported)
Output Formats
eBook epub, mobi, azw3, txt
Output Player Supported
player devices Kindle e-ink Readers, Kobo, Zune, Creative Zen, Sony, Samsung, car radio system, and other common MP3 players