Raspberry Pi has become popular around the world as a small-size, low-cost, low-power, and high-performance computing device. It can be used as a software access-point for IEEE802.11n wireless local-area networks. Unfortunately, only the software channel bonding is available where two independent 20MHz channels are used together for each link. In this paper, we present the configuration of Raspberry Pi for the hardware channel bonding to increase the capacity with 40MHz bandwidth. Because the built-in wireless NIC does not support it, the external adapter with USB3.0 is used together. To verify the performance, we conducted throughput measurements in two scenarios.