Hi， I’m interested in your product, like model HTP-PCBA-H23. But I need a slightly different product as follows:Quantity: 50USB output 3-4Upstream USB - normal 2.0 USB / 3.0 / Type-CPower supply for the card: 12V - we need to power up the card by external 12V DC adapter rather the use of USB power connector types: as we install everything inside of our hardware, USB connectors might be custom, like your magnetic connectors or similar. At least Upstream connector on another side of your hub is the moles 4 Pin connector with a pitch of 2mm. Fixations: The hub PCB must have 2 - 4 holes for 3mm standoff fixations. Please send a full catalog of your options Show More