Allen & Heath CQ-20B Ultracompact 20-Channel Digital Mixer (Rackmount/Stagebox) - Manual (Page 15)

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15 User Guide
V1.1.0 Issue 1
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.