The Pulsefire FPS PRO uses a Pixart 3389 optical sensor, this choice is surprising, as most others tend to use a Pixart 3360. This selection benefits the end user as the 3389 doesn't use hardware acceleration, which is supposed to provide reliable performance and precision. The Pulsefire FPS Pro also utilises a 1000Hz polling rate, Omron switches as well as the other usual suspects such as RGB illumination, software control, an ergonomic design and textured rubberised side grips.