Internally, the unit houses a 1.8″ Toshiba forty gigabyte micro hard-disk drive. For brains, it employs a 300Mhz 32-bit Samsung microcontroller based on the ARM instruction set. The F40 runs Linux kernel version 2.4.18, busybox and SAMBA. The option for buyer to replace the HDD for 2 micro SD cards is at his or her discretion. I have a hobby of collecting mp3 players (see my soon-to-be added other listings) and it has been sitting in a box unused basically since I bought it.
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