Although the motherboard provides an additional msata port, the transfer rate of the msata port is only less than half of the normal sata port, and you can't even get the performance of an SSD on this port. And it's not clear if there's room for an SSD on the inside of this device.
Unless you're using an SSD to replace a hard drive in a machine that has one, then the 32g capacity is a joke, and 320g is about right.