A socket has a housing (13) equipped with an elastic integral metal sheet (22) between both ends thereof. The integral metal sheet (22) is provided with a mount leg portion (76) for mounting the housing (13) on a mother board, a hook (64) for engaging a corresponding engaging hole in a daughter board, and a leaf spring (66) for elastically pushing up the daughter board in a manner to engage the hook (64). The daughter board inserted in a recess (16) of the housing (13) is pushed up by the leaf spring (66) whereby the engagement of the daughter board and hook (64) is ensured. <IMAGE>
