Enermax ETS-T40: Direct-Touch Heatpipe Cooler

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The Enermax ETS-T40 is composed four 6 mm thick copper direct-touch heatpipes friction-fit to just 52 aluminum fins. The heatsink is 160 mm tall, a common height for tower coolers. According to our digital scale, it weighs approximately 620 grams bare and about 840 grams total with the fan secured.

The most interesting feature of the heatsink is the fan design of the included Twister fan, a 120 mm model with bat-like blades and holes cut into the sides spelling out the Enermax name. As the ETS-T40 has an inset to accommodate it, 140 mm fans are not compatible without modification.

The fan-side surface of the heatsink is also unusual, with four distinct ridges and a large trough in the middle. The separation at the center between the heatsink and fan is a full centimeter. Triangular columns have been cut from the fins similar to the Thermalright HR01/02 Macho with their "through holes" but they appear more decorative than functional in this case.

Right out of the box, one of the fin corners was bent. This tends to be a problem for unanodized/plated fins. The fins are also closed on the sides in the center which creates a possible a ventilation issue.

The fan has a black frame and grey/translucent blades, though our particular ETS-T40-TB variant lacks LED fans (look for the suffix -TA and -VD if you like lighting). Notice the rubber dampening pads adhered to the edges.

On average, the fins are 0.40 mm thick and spaced 1.79 mm apart. It's a fairly tight grouping compared to most modern tower heatsinks. We don't expect it to have great low airflow performance.,

The heatpipes are almost perfectly flat and the surface has a nice, shiny finish. Some light circular machine marks are visible.

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