The MESH Bridge is a dedicated relay device that connects MESH blocks to Chromebooks and Windows devices. By using the MESH Bridge, you can use MESH with devices that were not previously supported, as well as devices that do not have Bluetooth functionality. Retail price was 6400 yen. It has only been used once for connection and is almost new. Communication with MESH blocks: Bluetooth Ver. 4.0 Number of connectable MESH blocks: 10 Connection to devices: USB connection Supported OS: Chrome OS version 89 or later Windows 10 (64bit) or later