Looking to buy NUC7i5BNK

I’m looking to buy an Intel NUC7i5BNK to replace an aging one that has failed. Intel says it was released in January 2017, but I can only seem to find one retailer that has it (SimplyNUC), but I don’t know them. I have purchased multiple NUCs through Amazon in the past, but this part number just doesn’t come up (the i3 version does, but not the i5). Anyone know why these aren’t readily available?