Patent ID: 7170742

Claim:
A portable computer, comprising: a main circuit board for connection to a plurality of components, the main circuit board comprising, a first connector mounted on a second surface of the main circuit board opposite a first surface of the main circuit board for connection to a first storage device, and a second connector mounted on the first surface of the main circuit board for connection to an extension card; and a holder directly attached to the main circuit board, wherein the holder aligns an engaging portion of the first storage device to the first connector and an engaging portion of the extension card to the second connector, wherein the holder has a guide portion to guide a detaching/attaching operation of the first storage device, wherein the holder is mounted only on the first surface of the main circuit board, wherein a first side of the holder has the guide portion, and wherein a second side of the holder different from the first side of the holder has a fixed portion for guiding the extension card, wherein the fixed portion on the second side does not vertically overlap the guide portion on the first side of the holder.