Long cable distances drobo 5c?

Hello,
what cables are you guys using for distances over 5m?

I tried the Corning 3Optical but it doesnt work reliably with the drobo 5c.

Thanks

hi abcd, i had a look on there faqs page and the last current usb question about using it for longer distances mentioned mixing some cables together. if you can have a look here in case not already seen, does the info they pasted help you at all?
https://www.corning.com/optical-cables-by-corning/worldwide/en/help.html#faqs

also, it seems that their device currently is geared towards usb devices that are self powered, and you might have already done this though can i check if you had been powering up the drobo normaly, via its own psu when you tried your tests?

btw how long are you trying to reach?