The Yealink RCH40 E2 Room Cable Hub is a network switch specifically designed for VoIP business phones and IP PBX systems. With a data transfer rate of 1.0, this Ethernet switch offers reliable connectivity for network devices. Manufactured by Yealink Network Technology Co., Ltd, the RCH40 model provides 5 RJ45 ports for easy connection of multiple devices. This compact switch is perfect for small office or home network setups, measuring 0.9" x 3.9" x 3.9" and weighing 48.0 volts. The Yealink RCH40 Ethernet Switch is a high-quality networking solution for businesses looking to enhance their communication systems.