kurgen wrote:That price is daylight robbery!!! You can buy a gold HDMI lead off e-bay for a fiver.... Or a fully wired scart lead for the same. The parts must cost no more than 3 quid, it's a 2 wire connection damn it!!
Grrr! This kind of comment really pisses me off. This is NOT a passive cable made by hooking one connector to another with a length of wire.
I happen to have designed and fabricated some similar pieces of electronics in the past, usually containing an FTDI USB->serial interface and AVR microcontroller, with some basic low speed I/O circuitry tacked on. Generally a pretty similar piece of kit to these cables.
Despite having little doubt that I have the necessary skills and equipment to make one of these myself, there's no way I'd do so when they're available at this price. For one thing, the connector is not a common part. I don't reckon I could supply the main components for less than £20. There's the necessary kit - you need a decent soldering station or this kind of thing is really painful work. Mainly though, designing the PCB, etching, soldering the components, testing etc would take so long that it'd cost me the equivalent of hundreds of pounds in time. And I've soldered FTDI chips before. They're only available in surface mount format. Good luck tackling a couple of dozen of those with your £15 Maplin soldering iron!
I don't need a cable for more than an hour every few months at the moment, so I found a helpful person nearby who was happy to lend me his. If I need one more often I'll certainly be buying one of these.
Incidentally, we have an automotive diagnostics machine at work costing many thousands of pounds, and I don't believe it does anything we can't do in our own garage for about 1% of the cost with one of these cables and a copy of ElanScan.