An apparatus includes: a memory controller comprising a data interface and a read data strobe input; a first memory device and a second memory device, each having respective data lines coupled to the data interface of the memory controller; and a read data strobe line coupling a read data strobe output of one of the first and second memory devices to the read data strobe input of the memory controller, wherein the memory controller is configured to sample data received from both the first memory device and the second memory device based on a read data strobe signal received at the read data strobe input.