The BOM for the BeagleBone Black calls out SCHA5B0200 from Alps Electronics for the micro SD connector. This part number was discontinued in September 2016 with a last time buy in March 2017. This part has a unique pin layout, and I have not been able to find a compatible replacement.
Does anyone have any information about a replacement connector or a redesign to support a new connector? Any information would be appreciated.
guess you are out of luck
they make a new and improved one
https://www.mouser.com/ProductDetail/ALPS/SCHA4B0419?qs=%2Fha2pyFadujzBzBPamTRjkUGzPSTLFKYyOM93b0OMDAhr7xe6hPfKnecwTu9HPED
old ones are available on ebay
https://www.ebay.com/itm/50pc-Micro-SD-Memory-Card-Push-push-Type-Connector-SCHA-Series-SCHA5B0200-Alps/131878424380?epid=1718065306&hash=item1eb4910f3c:g:eiQAAOSwiCRUkajw