Help Identify Japanese or NTSC Nintendo 3DS Motherboards

[scovitz]

I have an interesting problem I am hoping someone can help with... Over time, I have obtained and swapped out the motherboards of several Nintendo 3DS XL motherboards mainly to allow playing U.S. (NTSC) Region games on unique/rare Japanese hardware. This has worked great. Now I want to sell the excess motherboards that I have, but I cannot identify which motherboard is NTSC and which is Japanese. I know I have 2 Japanese and 1 NTSC. Can anyone tell from these motherboard photos as to which is which?

Thanks!