Embodiments of the present disclosure provide a circuit board in which the need for board-to-board connectors is substantially reduced or eliminated. Specifically embodiments disclosed herein describe a flexible substrate for use with a computing device. A first module is surface mounted on a first side of the flexible substrate and a second module is surface mounted on a second side of the flexible substrate. A rigid circuit board is coupled to either the first side of the flexible substrate or the second side of the flexible substrate. Further, the flexible substrate is bendable such that at least one of the first module and the second module are positionable with respect to the rigid circuit board and with respect to the other of the first module and the second module.