Frank De Petro, client technologist for Dell's Solutions Group said that "everything U2 does is custom built." Except the computing. Dell has provided three Dell Precision R5400 rackmountable workstations for the 360 degree control room. Each has the same memory, expandability and processing power as a server, but are also capable of high performance graphics. Dell also provided some 27-inch monitors. In the control room, this equipment is used to mix between 14 cameras on stage and pre-recorded material from previous shows. (The pre-recorded material, Dell said, was mixed on two Dell Precision N6500 mobile workstations - again with significant processing power but packed into a 17-inch notebook form factor).