I use that TRIPP LITE (Tripp Lite U026-016) cable as an extension to another reliable USB cable when I shoot tethered. I think I have tried two TRIPP cables together.
You might look at the DSLR Controller software on something like an ASUS tablet. I use that, too, for still shooting, but it is live view and only costs $8.50. With my ASUS Transformer I have the Keyboard Dock which includes a full-size USB. If you want to use just the tablet part of the [detachable] combo, you need a special ASUS USB adapter.
Or, you can use a Fujitsu T4220/T730/T731 with LR or PS and get full Wacom pressures while you shoot, preview, edit, and send in an actual Windows environment. Picked up a few T4220s, dropped in 4GB and a 128GB Intel SSD for under $500 - just look on E*ay. When shooting wireless, I have the WFT transmit to the tablet in FTP mode, use LR to Watch that folder, catalog and do prelim edits.
Or, I can shoot tethered directly into LR...
When shooting architecture, I 1) have an on site assistant editing and calling back results and/or 2) use DPP for focusing/firing outside of the room remotely if I'm backed up into a corner. I then have a cell modem which transmits the pre-picked and quick tweaked images to my studio FTP where they are picked up, dropped into the local edit box (8-way Xeon with 32GB) for final/detailed editing and printing.
I can also install a VNC server (UltraVNC) on the tablet or studio box and have it in read-only/view only mode. I can have DP/AD/etc watch the festivities from anywhere in the world over a standard web connection.
When I'm shooting scientific/macro work in the field, I can do it with the T or a Fujitsu U820 wired/wireless and do the same - I use LR to do the editing, prelim cropping, and profiling. I zoom in via LR and check focus, sharpness. I can also focus stack if necessary, right on spot. I then set up WS_FTP to watch a folder, where I send exports out of LR into. It then FTPs those out to whereever. I can also have a remote monitor via VNC and the cell modem.