Tag: pinout

USB 2.0 4-Port Aluminum Hubs … and Chinese manual labour (WHL #20)

Hey :)

For today’s blog post I have something that I found at work yesterday. It’s a plain old USB 2.0 hub in an aluminium case, which is used inside of our measuring equipment. Just a jellybean part, it’s sold as Logilink here but I bet other brands just slap on a different logo on the front and they’re good to go. We chose this because it is relatively small, has all USB jacks flat in line (the smaller ones have 2×2 configuration or tend to stack them), and can make use of external power supplies, rather than sucking too much from the uplink port. […]


DVI Male to HDMI Female adapter Gold-Plated NEW M F Converter For HDTV LCD IE (WHL #5)

I gotta sneak something in that I need to rant about a little. It’s a good old passive signal adapter – for getting HDMI video signals into a DVI monitor. What could the Wan Hung Lo engineering department or qualitty management possible f :D ck up?

Well, as it turns out, making a nonworking (nonfitting) unit isn’t trivial. You have to use deep knowledge about both signal protocols to make it …not work.

First, let’s talk about HDMI. To make all this copy protection (HDCP) crap work, you better use digital signals only, that is, not only the video is digital, but also the audio channel. […]