Also not OEM but I'll share another option if anyone else wants other cables. I went this route and am very pleased. Monoprice:
This wall plug and
any of these USB to Micro-USB cables.
The big advantage if you go this route is that their USB cables range in lengths from 1.5 feet to 15 feet. I got a 10 foot one and one of their power plugs for bedside charging for less than $5 total. Oh and they have
car cigarette lighter adapters if anyone is looking for those on the cheap too.