VCOM port mostly will solve the issue.
HS USB bandwidth and available SRAM was seen as too limiting; ports P2_0 and P2_1 were used as trace testmyspeed.onl port connections to the target via a buffer.
The default firmware for the standalone LPC-Link2 uses the same port pins as the on-board version, which are P2_0 and P2_1. When LPC-Link2 was initially designed there was a long term goal to support parallel trace, which was never implement as HS USB bandwidth and available SRAM was seen as too limiting; ports P2_0 and P2_1 were used as trace port connections to the target via a buffer.
It is possible to get a unidirectional VCOM port (from a target to the host PC via LPC-Link2) by connecting to pin 16 of the SWD/JTAG/ETM connector J8 at pin 16. Due to the buffer between the LPC4370 on LPC-Link2 (originally intended for trace data), it is not possible to get data in the other direction.