Screen contrast is definitely poor, but decent enough for an additional portable screen. The USB powered option does not work with USB hubs I own or USB-C powered hubs. It needs to be plugged directly into my laptop which has a regular USB port. The rest are USB-C or HDMI. This affects my ability to use most mice and keyboards that require this dongle connector. My workaround was to buy a bluetooth keyboard and mouse. The cost of that could go into a portable monitor with better screen quality, but oh well.
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