Oops. Sorry but work & home life has been crazy and I haven't check this is a while.

The Targus is a great solution as it does NOT require any power supply. The iPad suppies enough via the USB port on the adapter. I suspect any small cheap reader will work. I didn't post the model number because the damn thing has none. the blister pack is long gone and other that the Targus logo, the word "Power" on the power LED and a tiny stick with 1840 on it...there are no markings. I don't know if the 1840 is the model or just a "tested by" sticker.

I have another cheapie lying around somewhere. I'll try that and let you know if it works. I really just walked into Walmart or CVS and bought something off the rack to use with my PCs. The iPad fucntionality was just a bonus.