A PCB direct connector , which is directly mountable to a circuit board , the PCB direct connector comprising: terminal members arranged in two rows to respectively contact upper conductive patterns and lower conductive patterns provided to an upper surface and a lower surface of the circuit board; and a connector housing configured to accommodate the terminal members therein and allow a connector connection portion formed at one side of an end of the circuit board to be fitted into and released from the connector housing, wherein the connector housing includes an upper plate and a lower plate , wherein front portions of the upper plate and the lower plate are spaced apart from each other as much as at least a thickness of the circuit board so that the connector connection portion is inserted therebetween to a predetermined depth, and rear portions of the upper plate and the lower plate are connected to each other to form a single body, wherein the upper plate of the connector housing is divided into to two parts including a first upper plate and a second upper plate , and a latch is provided between the first upper plate and the second upper plate, wherein the latch has a hook provided at one end thereof so as to be hooked to a fastening hole provided in the circuit board in advance. wherein at both side surfaces of the connector housing are located substrate holding ribs protruding thereof, the substrate holding ribs having an inner width that corresponds to a thickness of the circuit board and the substrate holding ribs are configured to be fitted into ends of the circuit board at both sides based on the connector connection portion, wherein the substrate holding ribs are provided at the rear portions of the upper plate and the lower plate, and wherein the substrate holding ribs have inlets formed with a width greater than the thickness of the circuit board, and the width of the inlets gradually decreases in a direction along which an end of the circuit board is inserted. terminal members arranged in two rows to respectively contact upper conductive patterns and lower conductive patterns provided to an upper surface and a lower surface of the circuit board; and a connector housing configured to accommodate the terminal members therein and allow a connector connection portion formed at one side of an end of the circuit board to be fitted into and released from the connector housing, wherein the connector housing includes an upper plate and a lower plate , wherein front portions of the upper plate and the lower plate are spaced apart from each other as much as at least a thickness of the circuit board so that the connector connection portion is inserted therebetween to a predetermined depth, and rear portions of the upper plate and the lower plate are connected to each other to form a single body, wherein the upper plate of the connector housing is divided into to two parts including a first upper plate and a second upper plate , and a latch is provided between the first upper plate and the second upper plate, wherein the latch has a hook provided at one end thereof so as to be hooked to a fastening hole provided in the circuit board in advance. wherein at both side surfaces of the connector housing are located substrate holding ribs protruding thereof, the substrate holding ribs having an inner width that corresponds to a thickness of the circuit board and the substrate holding ribs are configured to be fitted into ends of the circuit board at both sides based on the connector connection portion, wherein the substrate holding ribs are provided at the rear portions of the upper plate and the lower plate, and wherein the substrate holding ribs have inlets formed with a width greater than the thickness of the circuit board, and the width of the inlets gradually decreases in a direction along which an end of the circuit board is inserted. <EOS>