Hi i have just bought a holder to fit on the DJI Flight Controler to enable holding a bigger tablet rather than my phone,
However the Data Cable from the controler to the new tablet is no where near long enough, is there anywhwere i can get a longer one.

Amazon...anywhere that sells cables

Hello there crizatuk. Good day and thank you for these information that you have given. You may try check our DJI Where To Buy platform on this link ( https://www.dji.com/where-to-buy ) to see if those cables that you need is available. In addition I hope that you can get some recommendations from our DJI Co pilots with regards to this inquiry. Thank you and please be safe always.

USB-C to Lightning

These are good because they are designed for DJI controllers.....the shape of the connectors fit the controller ports exactly.  You can get them in USB-C to USB-C, USB-C to microUSB, whatever you need.

Amazon.  These are Hanatora brand.

Very clean. But plumbing and electrical in the same room though? Unless those panels are specifically for that plumbing Tutuapp 9Apps Showbox equipment, it's a little weird.