This information pertains to LabQuest 2 and LabQuest 3.
The original LabQuest does not support this functionality.
There is no set limit to the number of connections LabQuest 2 or LabQuest 3 supports via Vernier Data Share with Graphical Analysis or Graphical Analysis Pro; however, performance will be impacted as more devices are connected.
You can easily connect a lab group of 4-5 students connecting to a single LabQuest without experiencing performance delays.