I have heard that China Yoko have discontinued the E2000A and replaced it with the E2000Y which doesn’t have the USB-CDC Serial port support.
They have released an E3000h which uses the same configuration barcodes and serial commands as the E2000A however has a different footprint and pinout, also the VCC has changed to 3v3.
Note that China Yoko have reversed Pin 1 on the connector