I used a simple disposable nail file to sand down the cable. You need to do it to make it /thinner/, so that it can fit in the drive's connector. With a Toshiba drive, you can use the cable already installed in your One (the one that connects the SSD to the mainboard). You'll only need a flipside cable if you plan to install a Hitachi drive (don't know about Samsung or other brands, sorry). Installed a 30GB Toshiba drive here using this method, it works just fine.
Just make sure you have a nail file handy when disassembling your One, and you'll figure it out when you try to insert the cable in the drive: it's slightly too thick
Just make sure you have a nail file handy when disassembling your One, and you'll figure it out when you try to insert the cable in the drive: it's slightly too thick