Zalman ZM-M400 Vs. Steelseries Rival 600
The ZM-M400 by Zalman uses an Optical sensor from Pixart PAN3509DH, providing a DPI/CPI range of 1,600DPI. It uses a USB connection with a 1.5m cable. It weighs in at 129g grams with the cable and is approximately 112 x 82 x 40 mm (LxWxH).
The Rival 600 by Steelseries uses an Optical sensor, specifically the TrueMove 3, providing a DPI/CPI range of 100-12000, 100 CPI Increments. This is combined with a 32-bit ARM Processor. This results in a tracking speed of 350 IPS, and a maximum acceleration of 50G. It uses a USB connection with a 2m, Detachable, Soft Rubber cable. It weighs in at 128g grams with the cable and 96g without the cable, has Yes, 8 x 4g weights and is approximately 131 x 69 x 43 mm (LxWxH).