Discount (or even grey market) electronics can be economical ways to get a job done, but one usually pays in other ways. [Majenko] ran into this when a need to capture some HDMI video output ended ...

Bending the Kindle software to your whims introduces its own unique challenges of course, but with a little tweaking, an old e-reader ... simple USB HDMI capture device takes the video input ...

Quest HDMI Link lets you connect devices ... not support USB video output in handheld mode, but handhelds like the ROG Ally ...