I have this one: http://www.amazon.com/Cable-Matters%C2%AE-USB-C-USB-A-White/dp/B00YQFMWK6/ref=cm_cr_pr_product_top?ie=UTF8 He hasn't reviewed it, though. Hopefully it's okay? I haven't had any issues with it so far, but that doesn't mean much. I just have it plugged into an A/C adapter by my bed.