relay device; repeater
Technical computing term for a device that receives and retransmits signals to extend network range.
Using this relay device, you can connect to the internet even in rooms where the Wi-Fi signal doesn't reach.
Often used interchangeably with 中継装置 in networking contexts, but リピーター is a more specific term for a device that regenerates and retransmits signals at the physical layer.
Compound of 中継 (relay, broadcast) and 装置 (device, equipment).