On Mon, 2006-04-17 at 08:29 -0500, James W. McKeand wrote:

> CF is IDE + power. Similar to laptop HDs. Most IDE CF adaptors I have
> seen have a 40 pin IDE connector, a CF connector and a power connector.
> The only additional circuitry is for power regulation (a couple of
> capacitors and a resistor). The traces from the IDE connector go to the
> CF connector. The traces from the power (floppy or HD molex) connect to
> the CF connector (with the mentioned electronic components).

http://www.pcengines.ch/cflash.htm

I've use the 1E model many times on old hardware. In fact I have one
running very nicely on a Pentium 166.