I have a couple of Nikon power supplys that use a Sanwa SNS-1603-RSFb connector. It is a 3 Pin round metal connector that looks like this. [https://item.rakuten.co.jp/painttool/saw-sns1603rsf/] but has 3 pins not 2 as shown in the picture. I see i can buy it in japan but I am looking for a US source where I can buy.

Can anyone recommend a different supplier or manufacture? Perhaps a similar connector from a different company?

Can anyone recommend a different supplier or manufacture? Perhaps a similar connector from a different company?