The model number is 23-m210ea and here's the support page for my machine:http://support.hp.com/gb-en/product/HP-E...7/product-info/
I use the built-in card reader and the Panasonic one works too.
It has two USB 2 ports and two USB 3 ports. Some 'Technics' things don't work with the USB 3, such as the MIDI drivers. I can't find my Panasonic reader at the moment to test whether that could be your problem if you have USB 3 on the tablet.