simple serial transport (bus) (SST)
The Simple Serial Transport (SST) is a bus system that was developed by Intel and Analog Devices. It is intended as a successor to the System Management Bus( SMBus) and is intended to transmit critical system variables such as temperatures or voltages faster and more reliably.
The SST-Bus meets the increased requirements for fast transmission of environmental conditions better than the System Management Bus (SMBus) because it has a data rate of 1 Mbit/s, in contrast to the 100 kbit/s of the SMBus. In addition, critical system variables are transmitted directly to the processor core or a special ASIC, which then controls fan speed. Inconjunction with the QST technology, with which Intel processors are equipped, optimum heat dissipation is possible through the speed control.