4. USB and SD 
USB-A (CQ as host, for audio and data storage and 
recall)  
USB-B (CQ as client, for audio only). 
Conforms to USB 2.0 standard. Class compliant USB-
B interface. 
 
Full size SD card slot. Use SDHC, Up to 32GB, UHS-I, 
Class 10. 
 
 
 
5. Network Port 
RJ45, Fast Ethernet. For network control messaging only. 
 
 
 
6. Built-In WiFi Access Point (CQ-18T, CQ-20B) 
Dual band (2.4GHz or 5GHz), Auto Channel sensing.