Tag: passive adapter

Keystone USB 3.0 A Female To Female Jack Module Adapter Converter Power Socket (WHL #13)

My new desk has some extension cables running underneath to provide data and also power conveniently on one end. I decided to use a 19″ 1U “KeyStone” patch panel because I like the variety and modular nature of these adapters. Well, things like HDMI (or even this DisplayPort voodoo!) are hard to find in China, and 4mm banana plug keystones and audio jacks are basically the same price over here. But USB seems very common – so why not buy an USB 3.0 keystone from the Wan Hung Lo factory?

So I did. This arrived not too long ago:

The front dimensions are standardized to 15x17mm. […]


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. […]