Compatible Linux. Tested on Debian and Ubuntu 14.04 x86_64 3.12.6 LTS x86_64 3.13.0-24 No driver crash during long period of operation. Test with win 7 smoothly with cdrom drivers included. Retail ubuntu: drivers taken into original charge rtl8192cu Realtek chip 0x11 Version Firmware rtlwifi / rtl8192cufw_TMSC.bin, rate control algoritm 'rtl_rc'