I could really use this. I would help me replace a ton of individual radio and equipment programming cables.

If you'd like to buy one, iIt's on tindie! https://www.tindie.com/products/jamesfowkes/quad-serial-breakout/

Wow, nice one!

It reminds me of the very cool Hackerport project. That project's goal was to bring a real parallel port and other goodies back to notebook machines, which back then started loosing their built in parallel (and other) ports and "suddenly" became pretty much hacking-unfriendly.

I'm thinking of reviving that tradition, i personally would want additional i2c and a few other communication ports. My personal goal would be, to have a unified sensor adaptor board for the Hackerfleet's MS 0x00 robotic vessel and its growing number of sensors.

Files(0)??

Hi, my apologies, there was a link to the GIthub repo but that wasn't clear at all. I've added that in the project details and also upload ZIPs and PDFs of the design.

Any plans to productize this, or at least help those of us interested get our hands on this? I use a lot of serial ports in my line of work and I was using FTDI's 895-USB-COM232-PLUS4 boards. But they didn't play well with the drivers in Rasbian when I wanted to use so RasPis to make the serial ports remotely accessible via ser2net. If these are more stable, I'd like to get my hands on a few :)

It's on tindie! https://www.tindie.com/products/jamesfowkes/quad-serial-breakout/

awsome! I've been meaning to do this for quite a while.

Cool project.  I have so much gear that already has the FTDI-cable pinout for serial, though, that I'd re-order the outputs to match.  It's an arbitrary standard, but it's a standard. 

Of course, what you do with the 3.3V / 5V power supplies is then up in the air...switchable with jumpers?

Just my 2C.  It's a great tool.  

Yeah, I thought long and hard about the pinout before I settled on this one. Maybe I'll make an FTDI version.

At the start of the project I'd considered putting a multiplexer on so pinouts could be switched on the fly, but that didn't seem worth it for the extra cost, board space and complexity.

To some extent it's also dictated by the FT4232 pinout. Everything is squeezed on pretty tight, so avoiding vias was a concern.