4 layers100 × 193 mm

The JMS561 is a USB Converter made by JMicron in a QFN-64 package with 65 pins. QFN-64 USB Converters ROHS.
JLCPCB lists it (part C2842698). 1 open-source board in 1 repository on GitHub use it.
The library has no symbol for this part yet.
The library has no footprint for this part yet.

QFN-64, with 65 pins.
JLCPCB lists it as part C2842698, with 0 in stock; the sellers' links on this page open their listings.
1 board in 1 repository on GitHub; the most starred are listed on this page, with their KiCad files.