A memory system includes a first signal line to carry a first signal that enters the module at a first end of the first signal line and a second signal line to carry a second signal that enters the module at a first end of the second signal line. The module includes a first memory device disposed on a first side of the module and a second memory module disposed on a second side of the module positioned opposite to the first side. The first memory device and the second memory device are connected to the first signal line and the second signal line. The first signal and the second signal traverse alongside each other to arrive in turn at the first memory device and the second memory device. The system may include a controller that provides the first signal and the second signal.