I’m using this one, works well and holds the cords I need
I got this cable and had one end snake out the bottom of the case to go to a main usb hub and had the other end stay inside the case to connect to the front usb hub. I stuck the front hub on with double sided tape.
Anker 4-Port USB 3.0 Ultra Slim Data Hub https://www.amazon.com/dp/B00XMD7KPU/ref=cm_sw_r_cp_apa_i_do1UCb3HRDNQ1
I use this one because its small and doesn't take up much space, but you need to do the power limit mod for it to work.
But Anker also has usb hubs on amazon with external power sources, and those will all work withoutthe power limit mod.