Like many other laptop coolers on the market, the Massive23 ST is designed to handle notebook sizes ranging anywhere from 10" up to a 17" widescreen. The physical dimensions of the base are roughly the same size as that of the CS, 14" x 13" x 2", but uses primarily a plastic construction which tips the scales at nearly half the weight of the CS, a little under two pounds. Other than the Thermaltake logo printed on front and back of the frame, the only features are a power indicator LED and power jack.
Generally shaped like an upside down U, the Massive23 forms an arch from front to back, with the center area ventilated by mesh and the single, oversize fan mounted underneath. The ST lacks the anti-slip rubber strip of the CS model along the lower edge, and the four rubber pads on the bottom corners are much smaller than those found on the CS. The fan specs are identical, rated for a respectable 57cfm at only 17dBA, and blows air up through the mesh and over the bottom of your portable computer. As you can see from the pictures, the bottom plastic edges are uneven and a bit rough. A grill keeps objects from coming in contact with the spinning fan blades.
The Massive23 is powered at 5v via your laptop's USB port. The cord is a relatively short two feet in length, and although it has a standard type A male USB plug on the end connecting to your computer, the other uses a round pin style connector. In other words, it's a proprietary cable and may be difficult to replace, so don't lose it. The fan is a blue LED unit, which can be powered on and off via a switch found inline on the power cable. The lighting is a good bit brighter than that found on the CS version.
Next let's see how the Massive23 ST performs under testing and usage.