A modular housing for electronic apparatus includes an approximately C-shaped enclosure member having an inner portion and first and second sides. The enclosure member includes a male stacking enclosure connector on the first side; a female stacking enclosure connector on the second side; and a first cassette connector situated at the inner portion. A cassette for carrying an electronic apparatus engages the inner portion of the C-shaped enclosure member. The cassette includes a second cassette connector situated on the cassette suitable for engagement with the first cassette connector. A fan pulls air through the cassette through vents which mate with vents on the enclosure member.