An ink cartridge (10, 10'), configured to be inserted into a recording apparatus in a direction of insertion in an upright state and comprising: an ink supply portion; a first signal blocking portion; a second signal blocking portion (189, 199) formed of a resin material including a black pigment; and a third signal blocking portion, wherein the first signal blocking portion is configured to either prevent a first signal from the recording apparatus from passing therethrough or to alter a path of the first signal when the first signal blocking portion receives the first signal, the second signal blocking portion (189, 199) is configured to either prevent a second signal from the recording apparatus from passing therethrough or to alter a path of the second signal when the second signal blocking portion (189, 199) receives the second signal, the third signal blocking portion is configured to either prevent the second signal from passing therethrough or to alter a path of the second signal when the third signal blocking portion receives the second signal the first signal blocking portion, the second signal blocking portion (189, 199), and the ink supply portion are positioned such that the first signal blocking portion, the second signal blocking portion (189, 199), and the ink supply portion intersect a first plane; the ink cartridge has a width in a width direction, a height in a height direction, and a depth in a depth direction; the depth direction is parallel with the direction of insertion; the first plane is parallel with the height direction and the depth direction; the second signal blocking portion (189, 199) and the third signal blocking portion are positioned such that the second signal blocking portion (189, 199) and the third signal blocking portion intersect a second plane which is perpendicular to the first plane; the second plane is parallel with the width direction and the depth direction; and the first signal blocking portion is arranged above the second signal blocking portion (189, 199) and the ink supply portion is arranged below the second signal blocking portion (189, 199). an ink supply portion; a first signal blocking portion; a second signal blocking portion (189, 199) formed of a resin material including a black pigment; and a third signal blocking portion, wherein the first signal blocking portion is configured to either prevent a first signal from the recording apparatus from passing therethrough or to alter a path of the first signal when the first signal blocking portion receives the first signal, the second signal blocking portion (189, 199) is configured to either prevent a second signal from the recording apparatus from passing therethrough or to alter a path of the second signal when the second signal blocking portion (189, 199) receives the second signal, the third signal blocking portion is configured to either prevent the second signal from passing therethrough or to alter a path of the second signal when the third signal blocking portion receives the second signal the first signal blocking portion, the second signal blocking portion (189, 199), and the ink supply portion are positioned such that the first signal blocking portion, the second signal blocking portion (189, 199), and the ink supply portion intersect a first plane; the ink cartridge has a width in a width direction, a height in a height direction, and a depth in a depth direction; the depth direction is parallel with the direction of insertion; the first plane is parallel with the height direction and the depth direction; the second signal blocking portion (189, 199) and the third signal blocking portion are positioned such that the second signal blocking portion (189, 199) and the third signal blocking portion intersect a second plane which is perpendicular to the first plane; the second plane is parallel with the width direction and the depth direction; and the first signal blocking portion is arranged above the second signal blocking portion (189, 199) and the ink supply portion is arranged below the second signal blocking portion (189, 199).