The UC55 board has the same format than the UC45, but it features a higher control rate and it exists in three different versions: single channel, dual channel, and triple channel. In single channel, the control rate is 30kSps, in dual channels, 15kSps, and in triple channels, 10kSps. The UC55 boards can also be stacked to handle several independent control channels at high frequency (up to 3).