Electronic component cooler

A coolant coupler comprising a cavity wherein the coolant trajectory is altered by an angle of greater than 75 degrees, comprising

• a first portal with a width LP1 and which communicates with a first coolant channel with a first axis and
• a second portal communicating with a second coolant channel with a with second axis, the first axis and the second axis being at right angles to each other, but displaced by a distance X,
• the cavity being defined by a wall having
• a first section beginning at the first portal and which continues in parallel with the first axis for a distance L1,
• a second section which starts at the end of the first section and which curves into the cavity with a radius R1,
• a third section which begins at the opposite side of the first portal than the first section and which continues at right angles to the first axis for a distance L3,
• a fourth section which starts at the end of the third section and which curves into the cavity with a radius R2, and
• a fifth section which forms a tangent between the second and fourth wall segments wherein the second portal has a dimension of LP2 and is positioned so that it lies directly over the cavity with one edge directly above a point of the fifth wall section,
• and wherein R1>R2.