The ajective "even" is not usually applied to faces, so it is difficult to answer the question. Two faces of a square based cuboid are square. The remaining 4 are rectangles.
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A cuboid. Or a hexagonal prism. In fact any prism whose base has an even number of sides will have three pairs of opposite parallel congruent faces. All but the cuboid will also have other faces but the question does not exclude them.
The general shape with the characteristics that you require is a parallelepiped. Special cases of this shape are the rectangular prism. An even more special case is the cube.
A hexahedron. In special cases it would be a cuboid and, in even more specific cases, a cube.
cube * * * * * A hexahedron of which a parallelepiped is a special case. A cuboid is a special case of a parallelepiped and a cube is an even more specific example.
A cube, a rectangular solid (box) or any skewed version of these. Even a truncated pyramid (square base, four sides, but top cut off).