==== Magic Control Technology MCT-232 ====
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These are basic USB UARTs which can achieve 115200 baud.

The device does not contain a well known USB UART bridge but is
comprised of a Philips PDIUSBD12, Philips 87C52 and a MAX232
clone.

In Linux, the reverse engineered driver is imperfect and it's
not possible to recommend this device for normal usage but it's
a candidate for for testing unreliable serial connections.